LST ETS 300 938 Leid.5-2007 Digital cellular telecommunications system (Phase 2+) (GSM);Mobile Station - Base Station System (MS - BSS) interface;Data Link (DL) layer specification (GSM 04.06 version 5.4.1 Release 1996)
2007LST ETS 300 938 Leid.5-2007 Digital cellular telecommunications system (Phase 2+) (GSM);Mobile Station - Base Station System (MS - BSS) interface;Data Link (DL) layer specification (GSM 04.06 version 5.4.1 Release 1996)