1994 Série IS : partage et compatibilité interservices: recommandations UIT-R / UIT-R
ITU-R IS series : compatibility between the sound-broadcasting service in the band of about 87-108 MHz and the aeronautical services in the band 108-137 MHz: 1994: rec. ITU-R IS.1009: (new as of 9 November 1993) / ITU-R