ETSI TS 100 938-2001 Digital Cellular Telecommunications System (Phase 2+); Mobile Station - Base Stations System (MS-BSS) Interface; Data Link (DL) Layer Specification 3GPP TS 04.06 Version 7.2.1 Release 1998
2009ETSI TS 100 938-2009 Digital cellular telecommunications system (Phase 2+); Mobile Station - Base Stations System (MS - BSS) Interface Data Link (DL) Layer Specification
2008ETSI TS 100 938-2008 Digital cellular telecommunications system (Phase 2+); Mobile Station - Base Stations System (MS - BSS) Interface Data Link (DL) Layer Specification V8.3.0; 3GPP TS 04.06 version 8.3.0 Release 1999
2002ETSI TS 100 938-2002 Digital Cellular Telecommunications System (Phase 2+); Mobile Station - Base Stations System (MS-BSS) Interface Data Link (DL) Layer Specification 3GPP TS 04.06 Version 8.2.1 Release 1999
2001ETSI TS 100 938-2001 Digital Cellular Telecommunications System (Phase 2+); Mobile Station - Base Stations System (MS-BSS) Interface; Data Link (DL) Layer Specification 3GPP TS 04.06 Version 7.2.1 Release 1998