DIN ETS 300522:2001-04 Digital cellular telecommunications system (Phase 2) - Network architecture (Endorsement of the English version ETS 300522:1996-11 as German standard) / Note: Endorsement notice
2001DIN ETS 300522:2001-04 Digital cellular telecommunications system (Phase 2) - Network architecture (Endorsement of the English version ETS 300522:1996-11 as German standard) / Note: Endorsement notice
2001DIN ETS 300522:2001 Digital cellular telecommunications system (Phase 2) - Network architecture (Endorsement of the English version ETS 300522:1996-11 as German standard)