def getLinkedRequests(self):
        rc = api.get_tool("reference_catalog")
        refs = rc.getBackReferences(self, "AnalysisRequestAttachment")
        ars = map(lambda ref: api.get_object_by_uid(ref.sourceUID, None), refs)
        ars = filter(None, ars)
        return sorted(ars, key=api.get_path, reverse=True)