1994 BS series : Broadcasting service (sound): ITU-R recommendations / ITU-R
1995 BS series : Broadcasting service (sound): ITU-R recommendations (new and revised as of 21 October 1995) / International Telecommunication Union
1994 BT series : broadcasting service (television): ITU-R recommendations / ITU-R
BS series : Broadcasting service (sound): ITU-R reports / ITU-R