<!ELEMENT linkgrp (%m.linkelements;)+> <!ATTLIST linkgrp %a.common; rel (%link.rel;) #IMPLIED>
linkgrp = Group of pointers or refs. Use linkgrp to provide multiple, alternative or simultaneously available, pointer or reference targets. The rel attribute is used to indicate the nature of the relationship between this element and its siblings, e.g. other linkgrp, ptr, or ref elements:
The linkgrp attribute is %a.common.
The rel attribute is %link.rel, and is used to indicate the nature of the relationship between this element and its siblings, e.g. other linkgrp, ptr, or ref elements:
<linkgrp> <linkgrp rel="version"> <ptr rel="part"/> <ptr rel="part"/> </linkgrp> <ptr rel="version"/> </linkgrp>
The outermost linkgrp element is simply a container and should have no value for the rel attribute
TBA.