<?xml encoding='ISO-8859-1'?> <!-- LINKS ENTITY --> <!ENTITY % links "link|anchor|jump|img|resource-ref|human-resource-ref"> <!ELEMENT anchor EMPTY> <!ATTLIST anchor name NMTOKEN #REQUIRED> <!ELEMENT img EMPTY> <!ATTLIST img src CDATA #REQUIRED alt CDATA #REQUIRED> <!ELEMENT link (#PCDATA|img)*> <!ATTLIST link idref NMTOKEN #IMPLIED anchor CDATA #IMPLIED> <!ELEMENT jump (#PCDATA|img)*> <!ATTLIST jump href CDATA #REQUIRED> <!-- cross-reference resource elements --> <!ELEMENT resource-ref EMPTY> <!ATTLIST resource-ref idref CDATA #REQUIRED> <!ELEMENT human-resource-ref EMPTY> <!ATTLIST human-resource-ref idref CDATA #REQUIRED>