DIN ETS 300074:1992-02 Videotex presentation layer data syntax transparent data (CEPT-recommendation T/TE 06-03, Edinburgh 1988); english version ETS 300074:1990
1992DIN ETS 300074:1992-02 Videotex presentation layer data syntax transparent data (CEPT-recommendation T/TE 06-03, Edinburgh 1988); english version ETS 300074:1990
1992DIN ETS 300074:1992 Videotex presentation layer data syntax transparent data (CEPT-recommendation T/TE 06-03, Edinburgh 1988); english version ETS 300074:1990