Acronyms von A bis Z
A.21
Empfehlung der "CCITT"/"ITU" von 1993: Collaboration with other international organizations on ITU-T defined telematic services (organization of the work of the ITU)
Empfehlung der "CCITT"/"ITU" von 1993: Collaboration with other international organizations on ITU-T defined telematic services (organization of the work of the ITU)