-@item xpmtoppm (from the netpbm package: the Portable Bitmap Utilities).
- The original is at
-@uref{ftp://ftp.x.org/contrib/utilities/netpbm-1mar1994.p1.tar.gz,the
-netpbm FTP site}
-
-@item pnmtopng. The original is
-at
-@uref{ftp://swrinde.nde.swri.edu/pub/png/applications/pnmtopng-2.37.2.tar.gz,in
-the pnmtopng FTP site}.
-
-@item @uref{http://www.lri.fr/~filliatr/ftp/bibtex2html/, Bibtex2html}, or
-@uref{http://www.uni-koblenz.de/ag-ki/ftp/bib2html/, Bib2html}.
-Bibtex2html is available in debian, while bib2html is in some rpm based
-distributions.
-Bib2html, in turn depends on man2html for proper installation.
-man2html can be had from @uref{http://askdonald.ask.uni-karlsruhe.de/hppd/hpux/Networking/WWW/Man2html-1.05,http://askdonald.ask.uni-karlsruhe.de/hppd/hpux/Networking/WWW/Man2html-1.05}.
-
-The website will build without bib converter utility, but you will not
-see our hypertextified bibliography.
-
-@item texinfo (a development release)
-The documentation will build with texinfo-4.0, but if you want split
-html pages, you're best off using the lates pretest version from
-@uref{ftp://texinfo.org/texinfo/pretests/texinfo-4.0b.tar.gz,
-texinfo-4.0b} or
-@uref{ftp://alpha.gnu.org/gnu/texinfo-4.0b.tar.gz,texinfo-4.0b}
+@item The netpbm utilities, see @uref{http://netpbm.sourceforge.net/}
+@item pktrace 1.0 or newer, needed for generating PostScript Type1
+fonts. Get it from @uref{http://www.cs.uu.nl/~hanwen/pktrace/}. You
+will need to install some additional packages to get pktrace to work.