UIT-R recommendations [CD-ROM] / International Telecommunication Union
Mobile, radiodetermination, amateur and related satellite services : supplement 1 to volume 2000 M Series: parts 2, 3, 4 and 6 / International Telecommunication Union
1995 SNG series : satellite news gathering: ITU-R recommendations (new and revised as of 21 October 1995) / International Telecommunication Union