-<!ENTITY url.sru.explain "http://www.loc.gov/standards/sru/specs/explain.html">
-<!ENTITY url.sru.scan "http://www.loc.gov/standards/sru/specs/scan.html/">
-
-<!ENTITY url.sru.diagnostics
- "http://www.loc.gov/standards/sru/specs/diagnostics.html">
-<!ENTITY url.sru.diagnostics.list
- "http://www.loc.gov/standards/sru/resources/diagnostics-list.html">
+<!ENTITY url.sru.explain "http://www.loc.gov/standards/sru/explain/">
+<!ENTITY url.sru.diagnostics "http://www.loc.gov/standards/sru/diagnostics/">