Contains the queries as necessary to find out a UnitDescritptiveMetadata (Node in the DAG) to point to as next Unit.Allows to reference an already existing node in a tree from a previous transfer.
<xsd:complexType name="UnitDescriptiveMetadataReferenceType"><xsd:annotation><xsd:documentation>Contains the queries as necessary to find out a UnitDescritptiveMetadata (Node in the DAG) to point to as next Unit. Allows to reference an already existing node in a tree from a previous transfer.</xsd:documentation></xsd:annotation><xsd:sequence><xsd:element name="BooleanQuery" type="BooleanQueryType"/></xsd:sequence></xsd:complexType>