Digital cellular telecommunications system (Phase 2+) - General requirements on interworking between the Public Land Mobile Network (PLMN) and the Integrated Services Digital Network (ISDN) or Public Switched Telephone Network (PSTN) (Endorsement of the English version ETS 300 976 V 5.2.2 (1997-05) as a German standard) (Endorsement of the English version ETS 300 976 V 5.3.1 (1997-09) as a German standard) (Endorsement of the English version ETS 300 976 V 5.4.1 (1998-01) as a German standard) (Endorsement of the English version ETS 300 976 V 5.5.1 (1998-03) as a German standard) (Endorsement of the English version ETS 300 976 V 5.6.1 (1998-07) as a German standard) (Endorsement of the English version ETS 300 976 V 5.7.1 (1998-10) as a German standard) (Endorsement of the English version ETS 300 976 V 5.8.1 (1999-03) as a German standard) (Endorsement of the English version ETS 300 976 V 5.9.1 (1999-08) as a German standard) (Endorsement of the English version ETS 300 976 V 5.10.1 (2000-06) as a German standard)

Systems and software engineering - Life cycle profiles for very small entities (VSEs) - Part 5-6-1: System engineering guidelines for the generic entry profile