Points to the identifier of the associated element as a means of linkage, for example, from a <term> to a <def>, or from a <bio> to a <contrib>
Value | Meaning |
---|---|
An identifier (IDREF) | Points to the existing identifier. |
Restriction: This attribute must be specified if the element is used. |
Value | Meaning |
---|---|
One or more identifiers (IDREFS) | Points to one or more existing identifiers. |
Restriction: This attribute may be specified if the element is used. |