<!ATTLIST CLASS_REF idref IDREF #REQUIRED filter IDREF #IMPLIED> |
Attribute | Mand. | Description | Default |
idref | yes | Identifier of the referred class. | |
filter | no | Filter applied to instances of the referred class. |
<!ELEMENT CLASS_REF (FILTER?)> |
Element | Mand. | Mult. | Description |
FILTER | no | no | Filter applied to instances of the referred class. |