document-id
Related Object Document Identifier
Identifier of a document within a publication that is (or contains) the target of the
<related-object> element.
Remarks
External Identifier: This attribute holds an external
identifier assigned to a publication that is part of the description of a related object (<related-object>).
Used on Element: <related-object>
| Value | Meaning |
|---|---|
| Text, numbers, or special characters | An identifier for the document that contains the related object (<related-object>). |
| Restriction | This is an optional attribute; there is no default. |