<xs:complexType name="alternativeReference"><xs:annotation><xs:documentation>Generic type for alternatives, choices and list of alternatives references.</xs:documentation></xs:annotation><xs:choice><xs:element name="alternativeID" type="xs:string"/><xs:element name="alternativesSetID" type="xs:string"/><xs:element name="alternativesSet" type="xmcda:alternativesSet"/></xs:choice></xs:complexType>