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Mobile satellite services : (aeronautical, land, maritime, mobile radiodetermination) aeronautical service: reports of the CCIR, 1990: (also decisions): annex 3 to volume VIII / International Telecommunication Union
Sound and television recording : reports of the CCIR, 1990: (also decisions): annex to volumes X and XI- part 3 / International Telecommunication Union
Series SA 1997 : space applications and meteorology: supplement 2 to volume 1997 SA series / International Telecommunication Union. Radiocommunication Bureau