<type>Attlist</type><name>linkopt</name><comment>The attribute href is used to specify an internal or external destination for a reference, a citation, an access to the ontology or a hypertext link. In elements using this attribute definition the href attribute is optional</comment>
<xsd:attributeGroup name="linkopt"><xsd:annotation><xsd:documentation><type>Attlist</type><name>linkopt</name><comment>The attribute href is used to specify an internal or external destination for a reference, a citation, an access to the ontology or a hypertext link. In elements using this attribute definition the href attribute is optional</comment></xsd:documentation></xsd:annotation><xsd:attribute name="href" type="xsd:anyURI"/></xsd:attributeGroup>