miscellaneous update

git-svn-id: http://svn.code.sf.net/p/netpbm/code/userguide@4124 9d0c8265-081b-0410-96cb-a4ca84ce46f8

7 files changed, 14 insertions, 20 deletions

diff --git a/cameratopam.html b/cameratopam.html
index b50bfeb7..bab5808d 100644
--- a/cameratopam.html
+++ b/cameratopam.html
@@ -164,12 +164,12 @@ means.
 <p><b>cameratopam</b> was new in Netpbm 10.28 (June 2005).
 
 <p>It was derived from the program <a
-href="http://www.cybercom.net/~dcoffin/dcraw/"><b>dcraw</b> by Dave
+href="https://dechifro.org/dcraw/"><b>dcraw</b> by Dave
 Coffin</a>, by Bryan Henderson in April 2005.  Bryan replaced the part
 that generates the Netpbm output image and removed the Adobe Photoshop
 output function.  Bryan changed the command syntax and made other
 small changes to make the program consistent with Netpbm.  He also
-split the source code into manageable pieces (<b>dcraw</b> has a
+split the source code into manageable pieces (<b>dcraw</b> had a
 single 5000 line source file).
 
 
diff --git a/pamtopfm.html b/pamtopfm.html
index 751b336a..054d02e7 100644
--- a/pamtopfm.html
+++ b/pamtopfm.html
@@ -39,7 +39,7 @@ would.
 <p>There are details of the PFM format in the <a href="pfm.html">PFM
 Format Description</a>.
 
-<p><a href="http://www.debevec.org/HDRShop">USC's HDRShop
+<p><a href="https://vgl.ict.usc.edu/HDRShop/">USC's HDRShop
 program</a> and a program called Lefty use it.
 
 <b>pamtopfm</b> creates a color PFM image if its input is RGB (PPM)
diff --git a/pgmminkowski.html b/pgmminkowski.html
index 04a3684c..62ce67c1 100644
--- a/pgmminkowski.html
+++ b/pgmminkowski.html
@@ -55,16 +55,16 @@ scanning tunnelling electron microscope.
 
 <p>For more information about Minkowski integrals, see e.g. 
 <ul>
-<li><a
-href="http://rugth30.phys.rug.nl/compphys0/2001.htm"> K. Michielsen and
-H. De Raedt, "Integral-Geometry Morphological Image Analysis",
-Phys. Rep. 347, 461-538 (2001).</a>
-
 <li><a href="http://rugth30.phys.rug.nl/pdf/prechaos.pdf">
 J.S. Kole, K. Michielsen, and H. De Raedt,
 "Morphological Image Analysis of Quantum Motion in Billiards",
 Phys. Rev. E 63, 016201-1 - 016201-7 (2001)
 </a>
+
+<li>K. Michielsen and
+H. De Raedt, "Integral-Geometry Morphological Image Analysis",
+Phys. Rep. 347, 461-538 (2001).
+
 </ul>
 
 <p>The output is suitable for direct use as a datafile in <b>gnuplot</b>.
diff --git a/pgmmorphconv.html b/pgmmorphconv.html
index 6b1c3dce..687869e5 100644
--- a/pgmmorphconv.html
+++ b/pgmmorphconv.html
@@ -95,16 +95,15 @@ was new in Netpbm 10.70 (March 2015).
 
 <p>For more information about morphological convolutions, see e.g.
 <ul>
-<li><a
-href="http://rugth30.phys.rug.nl/compphys0/2001.htm"> K. Michielsen and
-H. De Raedt, "Integral-Geometry Morphological Image Analysis",
-Phys. Rep. 347, 461-538 (2001).</a>
-
 <li><a href="http://rugth30.phys.rug.nl/pdf/prechaos.pdf">
 J.S. Kole, K. Michielsen, and H. De Raedt,
 "Morphological Image Analysis of Quantum Motion in Billiards",
 Phys. Rev. E 63, 016201-1 - 016201-7 (2001)
 </a>
+<li>K. Michielsen and
+H. De Raedt, "Integral-Geometry Morphological Image Analysis",
+Phys. Rep. 347, 461-538 (2001).
+
 </ul>
 
 
diff --git a/pnmtofiasco.html b/pnmtofiasco.html
index ed2dc4be..7caf4637 100644
--- a/pnmtofiasco.html
+++ b/pnmtofiasco.html
@@ -352,8 +352,7 @@ Selected Areas In Communications, January 1998
 Weighted Finite Automata</b>, Ph.D. thesis, Mensch &amp; Buch Verlag,
 ISBN 3-89820-002-7, October 1999.
 
-<p><a href="http://www.linuxjournal.com/node/4367/print">FIASCO: An
-Open-Source Fractal Image and Sequence Codec</a>, Linux Journal,
+<p>FIASCO: An Open-Source Fractal Image and Sequence Codec, Linux Journal,
 January 2001.
 
 <h2 id="author">AUTHOR</h2>
diff --git a/pnmtops.html b/pnmtops.html
index 422dd491..fcb03dde 100644
--- a/pnmtops.html
+++ b/pnmtops.html
@@ -429,10 +429,6 @@ convenient way to run Ghostscript with <b>pdfwrite</b>.
 
 <h2 id="seealso">SEE ALSO</h2>
 
-<p>Postscript is described in the <a
-href="http://www.adobe.com/products/postscript/pdfs/PLRM.pdf">Postscript
-Language Reference Manual</a>.
-
 <p><a href="http://dktools.sourceforge.net/bmpp.html"><b>bmpp</b></a> converts
 from Netpbm and other formats to Encapsulated Postscript.
 
diff --git a/ppmtompeg.html b/ppmtompeg.html
index 138c3198..2f4697a6 100644
--- a/ppmtompeg.html
+++ b/ppmtompeg.html
@@ -48,7 +48,7 @@ below.
 <p>To understand this program, you need to understand something about
 the complex MPEG-1 format.  One source of information about this
 standard format is the section Introduction to MPEG in the <a
-href="http://www.faqs.org/faqs/compression-faq">Compression FAQ</a>.
+href="http://www.faqs.org/faqs/compression-faq/">Compression FAQ</a>.
 
 <h2 id="options">OPTIONS</h2>