- <ulink url="http://www.loc.gov/z3950/agency/">ISO23950/Z39.50</ulink>,
- <ulink url="http://www.nlc-bnc.ca/iso/ill/">ILL</ulink> and
- <ulink url="http://www.loc.gov/z3950/agency/zing/srw/">SRW</ulink>
+ <ulink url="&url.z39.50;">ISO23950/Z39.50</ulink>,
+ <ulink url="&url.ill;">ILL</ulink> and
+ <ulink url="&url.sru;">SRU</ulink>