Space research and radioastronomy services : recommendations of the CCIR, 1990: (also and resolutions and opinions): volume II / International Telecommunication Union
Standard frequencies and time signals : recommendations of the CCIR, 1990: (also and resolutions and opinions): volume VII / International Telecommunication Union
Space research and radioastronomy services : reports of the CCIR, 1990: (also opinions): annex to volume II / International Telecommunication Union
Study groups 8 : questions of the CCIR, 1990: volume XV-2 / International Telecommunication Union
Television and sound transmission (CMTT) : recommendations of the CCIR, 1990: (also resolutions and options): volume XII / International Telecommunication Union
Broadcasting service (sound) : recommendations of the CCIR, 1990: (also and resolutions and opinions): volume X - part 1 / International Telecommunication Union
Textes administratives du CCIR : recommandations du CCIR, 1990: (ainsi que questions, résolutions, voeux et décisions): volume XIV / Union Internationale des Télécommunications
Vocabulaire (CCV) : recommandations du CCIR, 1990: (ainsi que résolutions et voeux): volume XIII / Unión Internationale des Telecommunications
Service de radiodiffusion : (sonore ): rapport du CCIR, 1990: (ainsi que décisions): volume X partie 1 / Union Internationale des Télécommunications
Services mobile, de radiopérage et d'amateur y compris les services par satellite associés : recommandations du CCIR, 1990: (ainsi que résolutions et voeux): volume VIII / Union Internationale des Télécommunications
Fixed service using radio-relay systems : reports of the CCIR, 1990: (also decisions): annex to volume IX - part 1 / International Telecommunication Union
Commission d'études 1, 12, 5, 6, 7 : questions du CCIR, 1990: volume XV-1 / International Telecommunication Union