<!ENTITY url.marc21 "http://www.loc.gov/marc/">
<!ENTITY url.marc8 "http://www.loc.gov/marc/specifications/speccharmarc8.html">
<!ENTITY url.marcxml "http://www.loc.gov/standards/marcxml/">
+<!ENTITY url.marcxchange "http://www.loc.gov/standards/iso25577/">
<!ENTITY url.ill "http://www.nlc-bnc.ca/iso/ill/">
<!ENTITY url.ber.over.tcpip "http://www.faqs.org/rfcs/rfc1729.html">
<!ENTITY url.http "http://www.w3.org/Protocols/">
<!ENTITY url.boost.compilers.status "http://www.boost.org/status/compiler_status.html">
<!ENTITY url.openssl "http://www.openssl.org/">
<!ENTITY url.gnutls "http://www.gnu.org/software/gnutls/">
-<!ENTITY url.unxutils "http://unxutils.sourceforge.net/">
+<!ENTITY url.unxutils "http://sourceforge.net/projects/unxutils/">
<!ENTITY url.tcpwrapper "ftp://ftp.porcupine.org/pub/security/index.html">
<!-- Operating Systems -->