structures:ref
attribute ref in namespace http://release.niem.gov/niem/structures/5.0/
Definition
A document-relative reference to an XML element.
Diagram
XML Schema
<xs:attribute name="ref" type="xs:IDREF">
<xs:annotation>
<xs:documentation>
A document-relative reference to an XML element.</xs:documentation>
</xs:annotation>
</xs:attribute>