LST EN 300 937 V7.1.2-2007 Digital cellular telecommunications system (Phase 2+) (GSM);Data Link (DL) layer;General aspects (GSM 04.05 version 7.1.2 Release 1998)
2007LST EN 300 937 V7.1.2-2007 Digital cellular telecommunications system (Phase 2+) (GSM);Data Link (DL) layer;General aspects (GSM 04.05 version 7.1.2 Release 1998)