23GPP TS 23.851 V6.1.0, Network sharing;Architecture and functional description;3rd Generation Partnership Project;Technical Specification Group Services and System Aspects;Network sharing;Architecture and Functional Description(Release 6)[S].2004.
33GPP TS 23.251 V6.6.0,3rd Generation Partnership Project;3rd Generation Partnership Project;Technica Specification Group Services and System Aspects Network Sharing;Architecture and functiona description(Release 6)[S].2006.