<complexType name="SpecificationRegistryEntryPropertyType">
  <annotation>
    <documentation>Property type containing one diggs:SpecificationRegistryEntry. Deliberately carries NO gml:AssociationAttributeGroup. A registry OWNS its entries - they are held by value, never by reference - and permitting an xlink:href here would allow a registry to be assembled by pointing at entries held elsewhere, which defeats the point of a single authority-controlled document. Ownership is expressible, association is not.</documentation>
  </annotation>
  <sequence>
    <element ref="diggs:SpecificationRegistryEntry"/>
  </sequence>
  <attributeGroup ref="gml:OwnershipAttributeGroup"/>
</complexType>