From 3d98d01dcb52b9aee05e2bdc8c9e7c306851689c Mon Sep 17 00:00:00 2001
From: Anna Petrasova <kratochanna@gmail.com>
Date: Mon, 28 Sep 2026 10:55:51 -0400
Subject: [PATCH] doc: fix references to retired server

---
 raster/r.carve/README                         | 37 --------------
 raster/r.fill.stats/r.fill.stats.html         | 49 -------------------
 raster/r.flow/r.flow.html                     | 10 ++--
 raster/r.flow/r.flow.md                       | 12 ++---
 .../r.sim/r.sim.sediment/r.sim.sediment.html  |  7 ++-
 raster/r.sim/r.sim.sediment/r.sim.sediment.md | 11 ++---
 raster/r.sim/r.sim.water/r.sim.water.html     | 18 +++----
 raster/r.sim/r.sim.water/r.sim.water.md       | 19 +++----
 raster/r.sun/r.sun.html                       |  2 +-
 raster/r.sun/r.sun.md                         |  2 +-
 raster/r.terraflow/r.terraflow.html           |  2 +-
 raster/r.terraflow/r.terraflow.md             |  3 +-
 raster/r.watershed/front/r.watershed.html     |  4 +-
 raster/r.watershed/front/r.watershed.md       |  2 +-
 scripts/r.fillnulls/r.fillnulls.html          |  4 +-
 scripts/r.fillnulls/r.fillnulls.md            |  4 +-
 vector/v.surf.rst/v.surf.rst.html             | 17 +++----
 vector/v.surf.rst/v.surf.rst.md               | 16 +++---
 vector/v.vol.rst/v.vol.rst.html               | 16 +++---
 vector/v.vol.rst/v.vol.rst.md                 | 22 ++++-----
 20 files changed, 68 insertions(+), 189 deletions(-)
 delete mode 100644 raster/r.carve/README

diff --git a/raster/r.carve/README b/raster/r.carve/README
deleted file mode 100644
index b40508ea206..00000000000
--- a/raster/r.carve/README
+++ /dev/null
@@ -1,37 +0,0 @@
-http://fatra.cnr.ncsu.edu/~hmitaso/gmslab/reports/cerl99/rep99.html
-Terrain modeling and Soil Erosion Simulations for Fort Hood and Fort Polk
-test areas
-
-Geographic Modeling and Systems Laboratory,
-University of Illinois atUrbana-Champaign
-Helena Mitasova, Lubos Mitas, William M. Brown, Douglas M. Johnston
-
-
- rast=name      raster input file
- vect=name      vector input file containing stream
-
- output=name    raster output file
- [points=name]  vector output file for adjusted stream points
- [width=value]  width of streams (in meters)
- [depth=value]  additional depth
-
--q              quiet - do not show progress
--n              no flat areas allowed in flow direction
-
-r.carve does not create a depressionless DEM because many depressions are in
-flat areas and not in the streams.
-
-http://fatra.cnr.ncsu.edu/~hmitaso/gmslab/reports/cerl99/demstr.gif
-
-The program will take the vector stream data, transform them to raster, and
-subtracts a defaultdepth + additionaldepth from the DEM. If the given
-width is more than 1 cell it will carve the stream with the given width.
-With -n option it should eliminate all flat cells within the stream, so
-when and if the water gets into the stream it will flow. Vector
-('points') option generates x,y,z for points which define the stream
-with the z value of the bottom of the carved-in stream. These points
-can then be combined with contour points to interpolate a new DEM with
-better representation of valleys.
-
-It has not been thoroughly tested so not all option may work properly -
-but this was the intention.
diff --git a/raster/r.fill.stats/r.fill.stats.html b/raster/r.fill.stats/r.fill.stats.html
index 87fb0c045df..6776740af0c 100644
--- a/raster/r.fill.stats/r.fill.stats.html
+++ b/raster/r.fill.stats/r.fill.stats.html
@@ -222,50 +222,6 @@ <h3>Smoothing</h3>
 using the <em><a href="r.param.scale.html">r.param.scale</a></em> module
 which operates with variable-size cell neighborhoods.)
 
-<!--
-wget http://fatra.cnr.ncsu.edu/uav-lidar-analytics-course/midpines_2015_spm.las -O points.las
-
-g.region n=220220 s=218690 e=637800 w=636270 res=1
-
-r.in.lidar input=points.las output=ground method=mean class_filter=2
-
-r.fill.stats input=ground output=ground_filled mode=wmean power=2.0 cells=8
-r.fill.stats -k input=ground output=ground_filled2 mode=wmean power=2.0 cells=8
-
-r.slope.aspect elevation=ground_filled slope=slope aspect=aspect pcurvature=pcur tcurvature=tcur
-r.slope.aspect elevation=ground_filled2 slope=slope2 aspect=aspect2 pcurvature=pcur2 tcurvature=tcur2
-
-g.region n=219537 s=219172 w=636852 e=637218 -k
-
-d.mon cairo output=r_fill_gaps_smoothing.png width=1464 height=730
-export GRASS_FONT=LiberationSans-Regular
-d.frame frame=u1 at=50,100,0,25 -c
-d.rast ground_filled
-d.text text="surf. (smoothed)" at=5,5 size=10 bgcolor=white color=black
-d.frame frame=u2 at=50,100,25,50 -c
-d.rast slope
-d.text text="slope" at=5,5 size=10 bgcolor=white color=black
-d.frame frame=u3 at=50,100,50,75 -c
-d.rast aspect
-d.text text="aspect" at=5,5 size=10 bgcolor=white color=black
-d.frame frame=u4 at=50,100,75,100 -c
-d.rast pcur
-d.text text="prof. curvature" at=5,5 size=10 bgcolor=white color=black
-d.frame frame=l1  at=0,50,0,25 -c
-d.rast ground_filled2
-d.text text="surf. (preserved)" at=5,5 size=10 bgcolor=white color=black
-d.frame frame=l2 at=0,50,25,50 -c
-d.rast slope2
-d.text text="slope" at=5,5 size=10 bgcolor=white color=black
-d.frame frame=l3 at=0,50,50,75 -c
-d.rast aspect2
-d.text text="aspect" at=5,5 size=10 bgcolor=white color=black
-d.frame frame=l4 at=0,50,75,100 -c
-d.rast pcur2
-d.text text="prof. curvature" at=5,5 size=10 bgcolor=white color=black
-d.mon stop=cairo
--->
-
 <h3>Spatial weighting scheme</h3>
 
 The key to getting good gap filling results is to understand the
@@ -389,11 +345,6 @@ <h3>Gap-filling of a dataset using spatially weighted mean (IDW)</h3>
 
 <h3>Lidar point cloud example</h3>
 
-<!--
-Using:
-http://fatra.cnr.ncsu.edu/uav-lidar-analytics-course/midpines_2015_spm.las
--->
-
 Inspect the point density and determine the extent of the point cloud
 using the <em><a href="r.in.pdal.html">r.in.pdal</a></em> module:
 
diff --git a/raster/r.flow/r.flow.html b/raster/r.flow/r.flow.html
index da06e63bf5c..ebc6876df0f 100644
--- a/raster/r.flow/r.flow.html
+++ b/raster/r.flow/r.flow.html
@@ -2,9 +2,9 @@ <h2>DESCRIPTION</h2>
 
 <em>r.flow</em> generates flowlines using a combined raster-vector
 approach
-(see <a href="http://fatra.cnr.ncsu.edu/~hmitaso/gmslab/papers/hmg.rev1.ps">Mitasova
+(see <a href="https://doi.org/10.1007/BF00893172">Mitasova
 and Hofierka 1993</a>
-and <a href="http://fatra.cnr.ncsu.edu/~hmitaso/gmslab/papers/ijgis.html">Mitasova
+and <a href="https://doi.org/10.1080/02693799508902048">Mitasova
 et al. 1995</a>) from an input <b>elevation</b> raster map (integer or
 floating point), and optionally an input <b>aspect</b> raster map
 and/or an input <b>barrier</b> raster map.
@@ -189,12 +189,12 @@ <h2>REFERENCES</h2>
 <ul>
 <li>Mitasova, H., L. Mitas, 1993, Interpolation by regularized spline with
 tension : I. Theory and implementation. Mathematical Geology 25, p. 641-655.
-(<a href="http://fatra.cnr.ncsu.edu/~hmitaso/gmslab/papers/lmg.rev1.ps">online</a>)</li>
+(<a href="https://doi.org/10.1007/BF00893171">online</a>)</li>
 
 <li>Mitasova and Hofierka 1993 : Interpolation by Regularized Spline with
 Tension: II. Application to Terrain Modeling and Surface Geometry Analysis.
 Mathematical Geology 25(6), 657-669
-(<a href="http://fatra.cnr.ncsu.edu/~hmitaso/gmslab/papers/hmg.rev1.ps">online</a>).</li>
+(<a href="https://doi.org/10.1007/BF00893172">online</a>).</li>
 
 <li>Mitasova, H., Mitas, L., Brown, W.M., Gerdes, D.P., Kosinovsky, I.,
 Baker, T., 1995: Modeling spatially and temporally distributed phenomena:
@@ -232,5 +232,3 @@ <h2>AUTHORS</h2>
 <i>The version of the program (adapted for GRASS 5.0)</i>:
 Joshua Caplan, Mark Ruesink, Helena Mitasova, University of Illinois
 at Urbana-Champaign with support from USA CERL.
-<a href="http://fatra.cnr.ncsu.edu/~hmitaso/gmslab/">GMSL/University of Illinois
-at Urbana-Champaign</a>
diff --git a/raster/r.flow/r.flow.md b/raster/r.flow/r.flow.md
index 3a80f0389e8..c4ebf77da4e 100644
--- a/raster/r.flow/r.flow.md
+++ b/raster/r.flow/r.flow.md
@@ -2,9 +2,9 @@
 
 *r.flow* generates flowlines using a combined raster-vector approach
 (see [Mitasova and Hofierka
-1993](http://fatra.cnr.ncsu.edu/~hmitaso/gmslab/papers/hmg.rev1.ps) and
+1993](https://doi.org/10.1007/BF00893172) and
 [Mitasova et al.
-1995](http://fatra.cnr.ncsu.edu/~hmitaso/gmslab/papers/ijgis.html)) from
+1995](https://doi.org/10.1080/02693799508902048)) from
 an input **elevation** raster map (integer or floating point), and
 optionally an input **aspect** raster map and/or an input **barrier**
 raster map.
@@ -146,11 +146,11 @@ map (zoomed view)
 - Mitasova, H., L. Mitas, 1993, Interpolation by regularized spline with
   tension : I. Theory and implementation. Mathematical Geology 25, p.
   641-655.
-  ([online](http://fatra.cnr.ncsu.edu/~hmitaso/gmslab/papers/lmg.rev1.ps))
+  ([online](https://doi.org/10.1007/BF00893171))
 - Mitasova and Hofierka 1993 : Interpolation by Regularized Spline with
   Tension: II. Application to Terrain Modeling and Surface Geometry
   Analysis. Mathematical Geology 25(6), 657-669
-  ([online](http://fatra.cnr.ncsu.edu/~hmitaso/gmslab/papers/hmg.rev1.ps)).
+  ([online](https://doi.org/10.1007/BF00893172)).
 - Mitasova, H., Mitas, L., Brown, W.M., Gerdes, D.P., Kosinovsky, I.,
   Baker, T., 1995: Modeling spatially and temporally distributed
   phenomena: New methods and tools for GRASS GIS. International Journal
@@ -177,6 +177,4 @@ Comenius University, Bratislava, Slovakia
 
 *The version of the program (adapted for GRASS 5.0)*: Joshua Caplan,
 Mark Ruesink, Helena Mitasova, University of Illinois at
-Urbana-Champaign with support from USA CERL. [GMSL/University of
-Illinois at
-Urbana-Champaign](http://fatra.cnr.ncsu.edu/~hmitaso/gmslab/)
+Urbana-Champaign with support from USA CERL.
diff --git a/raster/r.sim/r.sim.sediment/r.sim.sediment.html b/raster/r.sim/r.sim.sediment/r.sim.sediment.html
index e3caec941d5..58c03f3b5be 100644
--- a/raster/r.sim/r.sim.sediment/r.sim.sediment.html
+++ b/raster/r.sim/r.sim.sediment/r.sim.sediment.html
@@ -54,7 +54,7 @@ <h2>NOTES</h2>
 
 <h2>REFERENCES</h2>
 
-<a href="http://fatra.cnr.ncsu.edu/~hmitaso/gmslab/papers/II.6.8_Mitasova_044.pdf">
+<a href="https://doi.org/10.1016/S0167-5648(04)80159-X">
 Mitasova, H., Thaxton, C., Hofierka, J., McLaughlin, R., Moore, A., Mitas L., 2004,</a>
 Path sampling method for modeling overland water flow, sediment transport
 and short term terrain evolution in Open Source GIS.
@@ -62,15 +62,14 @@ <h2>REFERENCES</h2>
 Proceedings of the XVth International Conference on Computational Methods in Water
 Resources (CMWR XV), June 13-17 2004, Chapel Hill, NC, USA, Elsevier, pp. 1479-1490.
 <p>
-<a href="http://fatra.cnr.ncsu.edu/~hmitaso/gmslab/gisc00/duality.html">
 Mitasova H, Mitas, L., 2000, Modeling spatial processes in multiscale framework:
-exploring duality between particles and fields, </a>
+exploring duality between particles and fields,
 plenary talk at GIScience2000 conference, Savannah, GA.
 <p>
 Mitas, L., and Mitasova, H., 1998, Distributed soil erosion simulation
 for effective erosion prevention. Water Resources Research, 34(3), 505-516.
 <p>
-<a href="http://fatra.cnr.ncsu.edu/~hmitaso/gmslab/papers/LLEmiterev1.pdf">
+<a href="https://doi.org/10.1007/978-1-4615-0575-4_11">
 Mitasova, H., Mitas, L., 2001, Multiscale soil erosion simulations for land use management, </a>
 In: Landscape erosion and landscape evolution modeling, Harmon R. and Doe W. eds.,
 Kluwer Academic/Plenum Publishers, pp. 321-347.
diff --git a/raster/r.sim/r.sim.sediment/r.sim.sediment.md b/raster/r.sim/r.sim.sediment/r.sim.sediment.md
index 2dc83212022..94f35a0931b 100644
--- a/raster/r.sim/r.sim.sediment/r.sim.sediment.md
+++ b/raster/r.sim/r.sim.sediment/r.sim.sediment.md
@@ -42,7 +42,7 @@ up the simulation.
 
 [Mitasova, H., Thaxton, C., Hofierka, J., McLaughlin, R., Moore, A.,
 Mitas L.,
-2004,](http://fatra.cnr.ncsu.edu/~hmitaso/gmslab/papers/II.6.8_Mitasova_044.pdf)
+2004,](https://doi.org/10.1016/S0167-5648(04)80159-X)
 Path sampling method for modeling overland water flow, sediment
 transport and short term terrain evolution in Open Source GIS. In: C.T.
 Miller, M.W. Farthing, V.G. Gray, G.F. Pinder eds., Proceedings of the
@@ -50,10 +50,9 @@ XVth International Conference on Computational Methods in Water
 Resources (CMWR XV), June 13-17 2004, Chapel Hill, NC, USA, Elsevier,
 pp. 1479-1490.
 
-[Mitasova H, Mitas, L., 2000, Modeling spatial processes in multiscale
-framework: exploring duality between particles and
-fields,](http://fatra.cnr.ncsu.edu/~hmitaso/gmslab/gisc00/duality.html)
-plenary talk at GIScience2000 conference, Savannah, GA.
+Mitasova H, Mitas, L., 2000, Modeling spatial processes in multiscale
+framework: exploring duality between particles and fields, plenary talk
+at GIScience2000 conference, Savannah, GA.
 
 Mitas, L., and Mitasova, H., 1998, Distributed soil erosion simulation
 for effective erosion prevention. Water Resources Research, 34(3),
@@ -61,7 +60,7 @@ for effective erosion prevention. Water Resources Research, 34(3),
 
 [Mitasova, H., Mitas, L., 2001, Multiscale soil erosion simulations for
 land use
-management,](http://fatra.cnr.ncsu.edu/~hmitaso/gmslab/papers/LLEmiterev1.pdf)
+management,](https://doi.org/10.1007/978-1-4615-0575-4_11)
 In: Landscape erosion and landscape evolution modeling, Harmon R. and
 Doe W. eds., Kluwer Academic/Plenum Publishers, pp. 321-347.
 
diff --git a/raster/r.sim/r.sim.water/r.sim.water.html b/raster/r.sim/r.sim.water/r.sim.water.html
index bfb25e1e740..73a0722d85d 100644
--- a/raster/r.sim/r.sim.water/r.sim.water.html
+++ b/raster/r.sim/r.sim.water/r.sim.water.html
@@ -20,13 +20,8 @@ <h2>DESCRIPTION</h2>
 to determine the direction and magnitude of water flow velocity. To include a
 predefined direction of flow, map algebra can be used to replace terrain-derived
 partial derivatives with pre-defined partial derivatives in selected grid cells such
-as man-made channels, ditches or culverts. Equations (2) and (3) from
-<a href="http://fatra.cnr.ncsu.edu/~hmitaso/gmslab/reports/cerl99/rep99.html">this report</a>
-can be used to compute partial derivates of the predefined flow using its direction given
-by aspect and slope.
-
-<p>
-The equations are
+as man-made channels, ditches or culverts. The partial derivatives of the
+predefined flow are computed from its direction, given by aspect and slope:
 
 <div class="code"><pre>
 dx = tan(slope) * cos(aspect)
@@ -227,23 +222,22 @@ <h2>REFERENCES</h2>
 
 <ul>
 <li> Mitasova, H., Thaxton, C., Hofierka, J., McLaughlin, R., Moore, A., Mitas L., 2004,
-<a href="http://fatra.cnr.ncsu.edu/~hmitaso/gmslab/papers/II.6.8_Mitasova_044.pdf">
+<a href="https://doi.org/10.1016/S0167-5648(04)80159-X">
 Path sampling method for modeling overland water flow, sediment transport
 and short term terrain evolution in Open Source GIS.</a>
 In: C.T. Miller, M.W. Farthing, V.G. Gray, G.F. Pinder eds.,
 Proceedings of the XVth International Conference on Computational Methods in Water
 Resources (CMWR XV), June 13-17 2004, Chapel Hill, NC, USA, Elsevier, pp. 1479-1490.</li>
 
-<li> Mitasova H, Mitas, L., 2000,
-<a href="http://fatra.cnr.ncsu.edu/~hmitaso/gmslab/gisc00/duality.html">Modeling spatial
-processes in multiscale framework: exploring duality between particles and fields,</a>
+<li> Mitasova H, Mitas, L., 2000, Modeling spatial
+processes in multiscale framework: exploring duality between particles and fields,
 plenary talk at GIScience2000 conference, Savannah, GA.</li>
 
 <li> Mitas, L., and Mitasova, H., 1998, Distributed soil erosion simulation
 for effective erosion prevention. Water Resources Research, 34(3), 505-516.</li>
 
 <li> Mitasova, H., Mitas, L., 2001,
-<a href="http://fatra.cnr.ncsu.edu/~hmitaso/gmslab/papers/LLEmiterev1.pdf">
+<a href="https://doi.org/10.1007/978-1-4615-0575-4_11">
 Multiscale soil erosion simulations for land use management,</a>
 In: Landscape erosion and landscape evolution modeling, Harmon R. and Doe W. eds.,
 Kluwer Academic/Plenum Publishers, pp. 321-347.</li>
diff --git a/raster/r.sim/r.sim.water/r.sim.water.md b/raster/r.sim/r.sim.water/r.sim.water.md
index 8980e643ba7..baf66025f6f 100644
--- a/raster/r.sim/r.sim.water/r.sim.water.md
+++ b/raster/r.sim/r.sim.water/r.sim.water.md
@@ -23,12 +23,8 @@ used to determine the direction and magnitude of water flow velocity. To
 include a predefined direction of flow, map algebra can be used to
 replace terrain-derived partial derivatives with pre-defined partial
 derivatives in selected grid cells such as man-made channels, ditches or
-culverts. Equations (2) and (3) from [this
-report](http://fatra.cnr.ncsu.edu/~hmitaso/gmslab/reports/cerl99/rep99.html)
-can be used to compute partial derivates of the predefined flow using
-its direction given by aspect and slope.
-
-The equations are
+culverts. The partial derivatives of the predefined flow are computed
+from its direction, given by aspect and slope:
 
 ```sh
 dx = tan(slope) * cos(aspect)
@@ -210,21 +206,20 @@ Carolina sample dataset.*
   Mitas L., 2004, [Path sampling method for modeling overland water
   flow, sediment transport and short term terrain evolution in Open
   Source
-  GIS.](http://fatra.cnr.ncsu.edu/~hmitaso/gmslab/papers/II.6.8_Mitasova_044.pdf)
+  GIS.](https://doi.org/10.1016/S0167-5648(04)80159-X)
   In: C.T. Miller, M.W. Farthing, V.G. Gray, G.F. Pinder eds.,
   Proceedings of the XVth International Conference on Computational
   Methods in Water Resources (CMWR XV), June 13-17 2004, Chapel Hill,
   NC, USA, Elsevier, pp. 1479-1490.
-- Mitasova H, Mitas, L., 2000, [Modeling spatial processes in multiscale
-  framework: exploring duality between particles and
-  fields,](http://fatra.cnr.ncsu.edu/~hmitaso/gmslab/gisc00/duality.html)
-  plenary talk at GIScience2000 conference, Savannah, GA.
+- Mitasova H, Mitas, L., 2000, Modeling spatial processes in multiscale
+  framework: exploring duality between particles and fields, plenary
+  talk at GIScience2000 conference, Savannah, GA.
 - Mitas, L., and Mitasova, H., 1998, Distributed soil erosion simulation
   for effective erosion prevention. Water Resources Research, 34(3),
   505-516.
 - Mitasova, H., Mitas, L., 2001, [Multiscale soil erosion simulations
   for land use
-  management,](http://fatra.cnr.ncsu.edu/~hmitaso/gmslab/papers/LLEmiterev1.pdf)
+  management,](https://doi.org/10.1007/978-1-4615-0575-4_11)
   In: Landscape erosion and landscape evolution modeling, Harmon R. and
   Doe W. eds., Kluwer Academic/Plenum Publishers, pp. 321-347.
 - Hofierka, J, Mitasova, H., Mitas, L., 2002. GRASS and modeling
diff --git a/raster/r.sun/r.sun.html b/raster/r.sun/r.sun.html
index db141bdf304..734d482ba47 100644
--- a/raster/r.sun/r.sun.html
+++ b/raster/r.sun/r.sun.html
@@ -317,7 +317,7 @@ <h2>REFERENCES</h2>
 <li> Hofierka, J., Suri, M. (2002): The solar radiation model for Open source
 GIS: implementation and applications. International
 GRASS users conference in Trento, Italy, September 2002.
-(<a href="http://skagit.meas.ncsu.edu/~jaroslav/trento/Hofierka_Jaroslav.pdf">PDF</a>)</li>
+(<a href="https://web.archive.org/web/20030805000947/http://www.ing.unitn.it/~grass/conferences/GRASS2002/proceedings/proceedings/pdfs/Hofierka_Jaroslav.pdf">PDF</a>)</li>
 <li>
 Hofierka, J. (1997). Direct solar radiation modelling within an open GIS
 environment. Proceedings of JEC-GI'97 conference in Vienna, Austria, IOS
diff --git a/raster/r.sun/r.sun.md b/raster/r.sun/r.sun.md
index ebc0e5255ce..9922ec25fbf 100644
--- a/raster/r.sun/r.sun.md
+++ b/raster/r.sun/r.sun.md
@@ -307,7 +307,7 @@ We can compute the day of year from a specific date in Python:
 - Hofierka, J., Suri, M. (2002): The solar radiation model for Open
   source GIS: implementation and applications. International GRASS users
   conference in Trento, Italy, September 2002.
-  ([PDF](http://skagit.meas.ncsu.edu/~jaroslav/trento/Hofierka_Jaroslav.pdf))
+  ([PDF](https://web.archive.org/web/20030805000947/http://www.ing.unitn.it/~grass/conferences/GRASS2002/proceedings/proceedings/pdfs/Hofierka_Jaroslav.pdf))
 - Hofierka, J. (1997). Direct solar radiation modelling within an open
   GIS environment. Proceedings of JEC-GI'97 conference in Vienna,
   Austria, IOS Press Amsterdam, 575-584.
diff --git a/raster/r.terraflow/r.terraflow.html b/raster/r.terraflow/r.terraflow.html
index 80f7e5463dd..f41d178cdad 100644
--- a/raster/r.terraflow/r.terraflow.html
+++ b/raster/r.terraflow/r.terraflow.html
@@ -252,7 +252,7 @@ <h2>AUTHORS</h2>
 
   <dt>Porting to GRASS GIS, 2002:
     <dd> <a href="http://www.daimi.au.dk/~large/">Lars Arge</a>,
-         <a href="http://fatra.cnr.ncsu.edu/~hmitaso/index.html">Helena Mitasova,</a>
+         Helena Mitasova,
          <a href="http://www.bowdoin.edu/~ltoma/">Laura Toma</a>.
 
     <dt>Contact: <a href="mailto:ltoma@bowdoin.edu "> Laura Toma</a></dt>
diff --git a/raster/r.terraflow/r.terraflow.md b/raster/r.terraflow/r.terraflow.md
index ef5bbf2b7ea..09ff9469278 100644
--- a/raster/r.terraflow/r.terraflow.md
+++ b/raster/r.terraflow/r.terraflow.md
@@ -202,8 +202,7 @@ Vitter](http://www.science.purdue.edu/jsv/), Rajiv Wickremesinghe.
 
 Porting to GRASS GIS, 2002:
 
-[Lars Arge](http://www.daimi.au.dk/~large/), [Helena
-Mitasova,](http://fatra.cnr.ncsu.edu/~hmitaso/index.html) [Laura
+[Lars Arge](http://www.daimi.au.dk/~large/), Helena Mitasova, [Laura
 Toma](http://www.bowdoin.edu/~ltoma/).
 
 Contact: [Laura Toma](mailto:ltoma@bowdoin.edu-)
diff --git a/raster/r.watershed/front/r.watershed.html b/raster/r.watershed/front/r.watershed.html
index 7f2bcecebfd..c0487f5e866 100644
--- a/raster/r.watershed/front/r.watershed.html
+++ b/raster/r.watershed/front/r.watershed.html
@@ -524,8 +524,8 @@ <h2>REFERENCES</h2>
 <i>GIS-based Stream Network Analysis for The Chagres River Basin,
 Republic of Panama</i>. <b>The Rio Chagres: A Multidisciplinary Profile of
 a Tropical Watershed</b>, R. Harmon (Ed.), Springer/Kluwer, p.83-95.<br>
-URL: <a href="http://fatra.cnr.ncsu.edu/~hmitaso/measwork/panama/panama.html">
-http://fatra.cnr.ncsu.edu/~hmitaso/measwork/panama/panama.html</a></li>
+URL: <a href="https://doi.org/10.1007/1-4020-3297-8_6">
+https://doi.org/10.1007/1-4020-3297-8_6</a></li>
 
 <li>McCool et al. (1987). <i>Revised Slope Steepness Factor for the Universal
 Soil Loss Equation</i>, <b>Transactions of the ASAE</b> Vol 30(5).</li>
diff --git a/raster/r.watershed/front/r.watershed.md b/raster/r.watershed/front/r.watershed.md
index 269ceb5b6d5..004af39f3a9 100644
--- a/raster/r.watershed/front/r.watershed.md
+++ b/raster/r.watershed/front/r.watershed.md
@@ -431,7 +431,7 @@ Display output in a nice way
   *GIS-based Stream Network Analysis for The Chagres River Basin,
   Republic of Panama*. **The Rio Chagres: A Multidisciplinary Profile of
   a Tropical Watershed**, R. Harmon (Ed.), Springer/Kluwer, p.83-95.  
-  URL: <http://fatra.cnr.ncsu.edu/~hmitaso/measwork/panama/panama.html>
+  URL: <https://doi.org/10.1007/1-4020-3297-8_6>
 - McCool et al. (1987). *Revised Slope Steepness Factor for the
   Universal Soil Loss Equation*, **Transactions of the ASAE** Vol 30(5).
 - Metz M., Mitasova H., Harmon R. (2011). *Efficient extraction of
diff --git a/scripts/r.fillnulls/r.fillnulls.html b/scripts/r.fillnulls/r.fillnulls.html
index 04d060f6339..f015860f4bf 100644
--- a/scripts/r.fillnulls/r.fillnulls.html
+++ b/scripts/r.fillnulls/r.fillnulls.html
@@ -111,11 +111,11 @@ <h2>REFERENCES</h2>
 GIS</i>, 9 (4), special issue on Integrating GIS and Environmental modeling,
 433-446.</li>
 
-<li><a href="http://fatra.cnr.ncsu.edu/~hmitaso/gmslab/papers/lmg.rev1.ps">Mitasova H.
+<li><a href="https://doi.org/10.1007/BF00893171">Mitasova H.
 and Mitas L. 1993</a>: Interpolation by Regularized Spline with Tension: I.
 Theory and Implementation, <i>Mathematical Geology</i> 25, 641-655.</li>
 
-<li><a href="http://fatra.cnr.ncsu.edu/~hmitaso/gmslab/papers/hmg.rev1.ps">Mitasova H.
+<li><a href="https://doi.org/10.1007/BF00893172">Mitasova H.
 and Hofierka L. 1993</a>: Interpolation by Regularized Spline with Tension:
 II. Application to Terrain Modeling and Surface Geometry Analysis,
 <i>Mathematical Geology</i> 25, 657-667.</li>
diff --git a/scripts/r.fillnulls/r.fillnulls.md b/scripts/r.fillnulls/r.fillnulls.md
index 725a023a7f5..0208aa7581d 100644
--- a/scripts/r.fillnulls/r.fillnulls.md
+++ b/scripts/r.fillnulls/r.fillnulls.md
@@ -105,11 +105,11 @@ d.legend diff_rst_bilin
   of GIS*, 9 (4), special issue on Integrating GIS and Environmental
   modeling, 433-446.
 - [Mitasova H. and Mitas L.
-  1993](http://fatra.cnr.ncsu.edu/~hmitaso/gmslab/papers/lmg.rev1.ps):
+  1993](https://doi.org/10.1007/BF00893171):
   Interpolation by Regularized Spline with Tension: I. Theory and
   Implementation, *Mathematical Geology* 25, 641-655.
 - [Mitasova H. and Hofierka L.
-  1993](http://fatra.cnr.ncsu.edu/~hmitaso/gmslab/papers/hmg.rev1.ps):
+  1993](https://doi.org/10.1007/BF00893172):
   Interpolation by Regularized Spline with Tension: II. Application to
   Terrain Modeling and Surface Geometry Analysis, *Mathematical Geology*
   25, 657-667.
diff --git a/vector/v.surf.rst/v.surf.rst.html b/vector/v.surf.rst/v.surf.rst.html
index 1c8ba1250f8..56cae960752 100644
--- a/vector/v.surf.rst/v.surf.rst.html
+++ b/vector/v.surf.rst/v.surf.rst.html
@@ -101,7 +101,7 @@ <h2>NOTES</h2>
 function so that the important relationships between these parameters
 are preserved. The equations for computation of these parameters and
 their interpretation is described in
-<a href="http://fatra.cnr.ncsu.edu/~hmitaso/gmslab/papers/hmg.rev1.ps">
+<a href="https://doi.org/10.1007/BF00893172">
  Mitasova and Hofierka, 1993</a>
 or Neteler and Mitasova, 2004.
 Slopes and aspect are computed in degrees (0-90 and 1-360 respectively).
@@ -366,13 +366,13 @@ <h3>Usage of the where parameter</h3>
 <h2>REFERENCES</h2>
 
 <ul>
-  <li><a href="http://fatra.cnr.ncsu.edu/~hmitaso/gmslab/papers/IEEEGRSL2005.pdf">
+  <li><a href="https://doi.org/10.1109/LGRS.2005.848533">
       Mitasova, H., Mitas, L. and Harmon, R.S., 2005,</a>
     Simultaneous spline approximation and topographic analysis for
     lidar elevation data in open source GIS, IEEE GRSL 2 (4), 375- 379.</li>
   <li>Hofierka, J., 2005, Interpolation of Radioactivity Data Using Regularized Spline with Tension.
     Applied GIS, Vol. 1, No. 2, pp. 16-01 to 16-13. DOI: 10.2104/ag050016</li>
-  <li><a href="http://fatra.cnr.ncsu.edu/~hmitaso/gmslab/papers/TGIS2002_Hofierka_et_al.pdf">
+  <li><a href="https://doi.org/10.1111/1467-9671.00101">
       Hofierka J., Parajka J., Mitasova H., Mitas L., 2002,</a> Multivariate
     Interpolation of Precipitation Using Regularized Spline with Tension.
     Transactions in GIS 6(2), pp. 135-150.</li>
@@ -380,15 +380,15 @@ <h2>REFERENCES</h2>
     spatially and temporally distributed phenomena: New methods and tools for
     GRASS GIS. International Journal of GIS, 9 (4), special issue on Integrating
     GIS and Environmental modeling, 433-446.</li>
-  <li><a href="http://fatra.cnr.ncsu.edu/~hmitaso/gmslab/papers/MG-I-93.pdf">
+  <li><a href="https://doi.org/10.1007/BF00893171">
       Mitasova, H. and Mitas, L., 1993</a>:
     Interpolation by Regularized Spline with Tension:
     I. Theory and Implementation, Mathematical Geology ,25, 641-655.</li>
-  <li><a href="http://fatra.cnr.ncsu.edu/~hmitaso/gmslab/papers/MG-II-93.pdf">
+  <li><a href="https://doi.org/10.1007/BF00893172">
       Mitasova, H. and Hofierka, J., 1993</a>: Interpolation
     by Regularized Spline with Tension: II. Application to Terrain Modeling
     and Surface Geometry Analysis, Mathematical Geology 25, 657-667.</li>
-  <li><a href="http://fatra.cnr.ncsu.edu/~hmitaso/gmslab/papers/CMA1988.pdf">
+  <li><a href="https://doi.org/10.1016/0898-1221(88)90255-6">
       Mitas, L., and Mitasova H., 1988, </a> General variational approach to the approximation
     problem, Computers and Mathematics with Applications, v.16, p. 983-992.</li>
   <li><a href="https://grassbook.org">
@@ -414,11 +414,6 @@ <h2>SEE ALSO</h2>
 Overview: <a href="https://grasswiki.osgeo.org/wiki/Interpolation">
  Interpolation and Resampling</a> in GRASS
 
-<p>
-For examples of applications see
-<a href="http://fatra.cnr.ncsu.edu/~hmitaso/gmslab/">GRASS4 implementation</a> and
-<a href="http://fatra.cnr.ncsu.edu/~hmitaso/">GRASS5 and GRASS6 implementation</a>.
-
 <h2>AUTHORS</h2>
 
 <em>Original version of program (in FORTRAN) and GRASS enhancements</em>:
diff --git a/vector/v.surf.rst/v.surf.rst.md b/vector/v.surf.rst/v.surf.rst.md
index 5c32a6de517..719bb757986 100644
--- a/vector/v.surf.rst/v.surf.rst.md
+++ b/vector/v.surf.rst/v.surf.rst.md
@@ -87,7 +87,7 @@ Topographic parameters are computed directly from the approximation
 function so that the important relationships between these parameters
 are preserved. The equations for computation of these parameters and
 their interpretation is described in [Mitasova and Hofierka,
-1993](http://fatra.cnr.ncsu.edu/~hmitaso/gmslab/papers/hmg.rev1.ps) or
+1993](https://doi.org/10.1007/BF00893172) or
 Neteler and Mitasova, 2004. Slopes and aspect are computed in degrees
 (0-90 and 1-360 respectively). The aspect raster map has value 0
 assigned to flat areas (with slope less than 0.1%) and to singular
@@ -302,14 +302,14 @@ d.vect elevrand where="value > 94.9"
 ## REFERENCES
 
 - [Mitasova, H., Mitas, L. and Harmon, R.S.,
-  2005,](http://fatra.cnr.ncsu.edu/~hmitaso/gmslab/papers/IEEEGRSL2005.pdf)
+  2005,](https://doi.org/10.1109/LGRS.2005.848533)
   Simultaneous spline approximation and topographic analysis for lidar
   elevation data in open source GIS, IEEE GRSL 2 (4), 375- 379.
 - Hofierka, J., 2005, Interpolation of Radioactivity Data Using
   Regularized Spline with Tension. Applied GIS, Vol. 1, No. 2, pp. 16-01
   to 16-13. DOI: 10.2104/ag050016
 - [Hofierka J., Parajka J., Mitasova H., Mitas L.,
-  2002,](http://fatra.cnr.ncsu.edu/~hmitaso/gmslab/papers/TGIS2002_Hofierka_et_al.pdf)
+  2002,](https://doi.org/10.1111/1467-9671.00101)
   Multivariate Interpolation of Precipitation Using Regularized Spline
   with Tension. Transactions in GIS 6(2), pp. 135-150.
 - H. Mitasova, L. Mitas, B.M. Brown, D.P. Gerdes, I. Kosinovsky, 1995,
@@ -317,16 +317,16 @@ d.vect elevrand where="value > 94.9"
   and tools for GRASS GIS. International Journal of GIS, 9 (4), special
   issue on Integrating GIS and Environmental modeling, 433-446.
 - [Mitasova, H. and Mitas, L.,
-  1993](http://fatra.cnr.ncsu.edu/~hmitaso/gmslab/papers/MG-I-93.pdf):
+  1993](https://doi.org/10.1007/BF00893171):
   Interpolation by Regularized Spline with Tension: I. Theory and
   Implementation, Mathematical Geology ,25, 641-655.
 - [Mitasova, H. and Hofierka, J.,
-  1993](http://fatra.cnr.ncsu.edu/~hmitaso/gmslab/papers/MG-II-93.pdf):
+  1993](https://doi.org/10.1007/BF00893172):
   Interpolation by Regularized Spline with Tension: II. Application to
   Terrain Modeling and Surface Geometry Analysis, Mathematical Geology
   25, 657-667.
 - [Mitas, L., and Mitasova H.,
-  1988,](http://fatra.cnr.ncsu.edu/~hmitaso/gmslab/papers/CMA1988.pdf)
+  1988,](https://doi.org/10.1016/0898-1221(88)90255-6)
   General variational approach to the approximation problem, Computers
   and Mathematics with Applications, v.16, p. 983-992.
 - [Neteler, M. and Mitasova, H., 2008, Open Source GIS: A GRASS GIS
@@ -347,10 +347,6 @@ d.vect elevrand where="value > 94.9"
 Overview: [Interpolation and
 Resampling](https://grasswiki.osgeo.org/wiki/Interpolation) in GRASS
 
-For examples of applications see [GRASS4
-implementation](http://fatra.cnr.ncsu.edu/~hmitaso/gmslab/) and [GRASS5
-and GRASS6 implementation](http://fatra.cnr.ncsu.edu/~hmitaso/).
-
 ## AUTHORS
 
 *Original version of program (in FORTRAN) and GRASS enhancements*:  
diff --git a/vector/v.vol.rst/v.vol.rst.html b/vector/v.vol.rst/v.vol.rst.html
index b69295c4d8a..cb813e22bcf 100644
--- a/vector/v.vol.rst/v.vol.rst.html
+++ b/vector/v.vol.rst/v.vol.rst.html
@@ -229,31 +229,27 @@ <h2>REFERENCES</h2>
 Interpolation of Precipitation Using Regularized Spline with Tension.
 Transactions in
 GIS&nbsp; 6, pp. 135-150.
-<p><a href="http://fatra.cnr.ncsu.edu/~hmitaso/gmslab/">Mitas, L.,
-Mitasova, H.</a>, 1999, Spatial Interpolation. In: P.Longley, M.F.
+<p>Mitas, L., Mitasova, H., 1999, <a href="https://www.wiley.com/en-us/shop/general-introductory-geography/geographical-information-systems-principles-techniques-management-and-applications-2nd-edition-abridged-p-9780471735458">Spatial
+Interpolation</a>. In: P.Longley, M.F.
 Goodchild, D.J. Maguire, D.W.Rhind (Eds.), Geographical Information
 Systems: Principles, Techniques, Management and Applications, Wiley,
 pp.481-492
 <p>Mitas L., Brown W. M., Mitasova H., 1997,
-<a href="http://fatra.cnr.ncsu.edu/~hmitaso/gmslab/lcgfin/cg-mitas.html">Role
+<a href="https://doi.org/10.1016/S0098-3004(97)00007-1">Role
 of dynamic cartography in simulations of landscape processes based on
 multi-variate fields.</a> Computers and Geosciences, Vol. 23, No. 4,
-pp. 437-446 (includes CDROM and WWW: www.elsevier.nl/locate/cgvis)
+pp. 437-446 (includes CDROM)
 <p>Mitasova H., Mitas L.,&nbsp; Brown W.M.,&nbsp; D.P. Gerdes, I.
 Kosinovsky, Baker, T.1995, Modeling spatially and temporally
 distributed phenomena:
 New methods and tools for GRASS GIS. International Journal of GIS, 9
 (4),
 special issue on Integrating GIS and Environmental modeling, 433-446.
-<p> Mitasova, H., Mitas, L., Brown, B., Kosinovsky, I., Baker, T.,
-Gerdes, D. (1994):
-<a href="http://fatra.cnr.ncsu.edu/~hmitaso/gmslab/viz/ches.html">Multidimensional
-interpolation and visualization in GRASS GIS</a>
-<p><a href="http://fatra.cnr.ncsu.edu/~hmitaso/gmslab/papers/lmg.rev1.ps">Mitasova
+<p><a href="https://doi.org/10.1007/BF00893171">Mitasova
 H. and Mitas L. 1993</a>: Interpolation by Regularized Spline with
 Tension: I. Theory and Implementation, <i>Mathematical Geology</i> 25,
 641-655.
-<p><a href="http://fatra.cnr.ncsu.edu/~hmitaso/gmslab/papers/hmg.rev1.ps">Mitasova
+<p><a href="https://doi.org/10.1007/BF00893172">Mitasova
 H. and Hofierka J. 1993</a>: Interpolation by Regularized Spline with
 Tension: II. Application to Terrain Modeling and Surface Geometry
 Analysis, <i>Mathematical Geology</i> 25, 657-667.
diff --git a/vector/v.vol.rst/v.vol.rst.md b/vector/v.vol.rst/v.vol.rst.md
index 5feb8760e8d..79ba77a10b4 100644
--- a/vector/v.vol.rst/v.vol.rst.md
+++ b/vector/v.vol.rst/v.vol.rst.md
@@ -226,33 +226,29 @@ Hofierka J., Parajka J., Mitasova H., Mitas L., 2002, Multivariate
 Interpolation of Precipitation Using Regularized Spline with Tension.
 Transactions in GIS  6, pp. 135-150.
 
-[Mitas, L., Mitasova, H.](http://fatra.cnr.ncsu.edu/~hmitaso/gmslab/),
-1999, Spatial Interpolation. In: P.Longley, M.F. Goodchild, D.J.
-Maguire, D.W.Rhind (Eds.), Geographical Information Systems: Principles,
-Techniques, Management and Applications, Wiley, pp.481-492
+Mitas, L., Mitasova, H., 1999, [Spatial
+Interpolation](https://www.wiley.com/en-us/shop/general-introductory-geography/geographical-information-systems-principles-techniques-management-and-applications-2nd-edition-abridged-p-9780471735458).
+In: P.Longley, M.F. Goodchild, D.J. Maguire, D.W.Rhind (Eds.),
+Geographical Information Systems: Principles, Techniques, Management and
+Applications, Wiley, pp.481-492
 
 Mitas L., Brown W. M., Mitasova H., 1997, [Role of dynamic cartography
 in simulations of landscape processes based on multi-variate
-fields.](http://fatra.cnr.ncsu.edu/~hmitaso/gmslab/lcgfin/cg-mitas.html)
-Computers and Geosciences, Vol. 23, No. 4, pp. 437-446 (includes CDROM
-and WWW: <www.elsevier.nl/locate/cgvis>)
+fields.](https://doi.org/10.1016/S0098-3004(97)00007-1)
+Computers and Geosciences, Vol. 23, No. 4, pp. 437-446 (includes CDROM)
 
 Mitasova H., Mitas L.,  Brown W.M.,  D.P. Gerdes, I. Kosinovsky, Baker,
 T.1995, Modeling spatially and temporally distributed phenomena: New
 methods and tools for GRASS GIS. International Journal of GIS, 9 (4),
 special issue on Integrating GIS and Environmental modeling, 433-446.
 
-Mitasova, H., Mitas, L., Brown, B., Kosinovsky, I., Baker, T., Gerdes,
-D. (1994): [Multidimensional interpolation and visualization in GRASS
-GIS](http://fatra.cnr.ncsu.edu/~hmitaso/gmslab/viz/ches.html)
-
 [Mitasova H. and Mitas L.
-1993](http://fatra.cnr.ncsu.edu/~hmitaso/gmslab/papers/lmg.rev1.ps):
+1993](https://doi.org/10.1007/BF00893171):
 Interpolation by Regularized Spline with Tension: I. Theory and
 Implementation, *Mathematical Geology* 25, 641-655.
 
 [Mitasova H. and Hofierka J.
-1993](http://fatra.cnr.ncsu.edu/~hmitaso/gmslab/papers/hmg.rev1.ps):
+1993](https://doi.org/10.1007/BF00893172):
 Interpolation by Regularized Spline with Tension: II. Application to
 Terrain Modeling and Surface Geometry Analysis, *Mathematical Geology*
 25, 657-667.