Complex type ItemRefStructure Defined in OpRa/SIRI/xsd/siri/siri_request_support.xsd:142 Type for reference to an Item. Base type ItemIdentifierType Used by elements GeneralMessageCancellation MonitoredStopVisitCancellation StopLineNoticeCancellation StopNoticeCancellation TimetabledFeederArrivalCancellation No child elements or attributes are defined for this type.