European digital cellular telecommunications system (Phase 2) - Bearer services supported by a GSM Public Land Mobile Network (PLMN); English version ETS 300501:1994
Edition 1995-01

European digital cellular telecommunications system (Phase 2) - Principles of telecommunication services supported by a GSM Public Land Mobile Network (PLMN); English version ETS 300500:1996
Edition 1996-08

Integrated Services Digital Network (ISDN) - Audiovisual services - Frame structure for a 64 kbit/s to 1920 kbit/s channel and associated syntax for inband signalling; English version ETS 300144:1996
Edition 1996-08

European digital cellular telecommunications system (Phase 2) - GSM Public Land Mobile Network (PLMN) connection types; English version ETS 300528:1994
Edition 1995-01

Information processing systems; fibre distributed date interface (FDDI); part 2: token ring media access control (MAC) (ISO 9314-2:1989); English version EN 29314-2:1993
Edition 1993-12

Integrated Services Digital Network (ISDN); user-network interface layer 3; specification for basic call control; english version ETS 300102-1:1990
Edition 1992-02

Industrial communication networks - Fieldbus specifications - Part 4-13: Data-link layer protocol specification - Type 13 elements (IEC 61158-4-13:2014); English version EN 61158-4-13:2014, only on CD-ROM
Edition 2015-09

Postal services - Open Interface between Machine Control and Reading Coding System - MC/RC-Interface; German version CEN/TS 16238:2011
Edition 2011-12