Sound and television recording : recommendations of the CCIR, 1990: (also and resolutions and opinions): volume X and XI- part 3 / International Telecommunication Union
Enregistrement sonore et télévisuel : recommandations du CCIR, 1990: (ainsi que résolutions et voeux): volume X e XI- partie 3 / Unión Internationale des Telecommunications
Land satellite service : amateur service: amateur satellite service: reports of the CCIR, 1990: (also decisions s): annex 1 to volume VIII / International Telecommunication Union
Maritime mobile service : reports of the CCIR, 1990: (also decisions s): annex 2 volume VIII / International Telecommunication Union