Information technology. Data interchange on 90 mm flexible disk cartridges using modified frequency modulation recording at 31 831 ftprad on 80 tracks on each side. ISO Type 303— 56 стр.
Information processing systems; data interchange on 90 mm (3,5 in) flexible disk cartridges using modified frequency modulation recording at 15916 ftprad, on 80 tracks on each side; part 1: dimensional, physical and magnetic characteristics— 45 стр.
Information processing; data interchange on 90 mm (3.5 in) flexible disk cartridges using modified frequency modulation recording at 7958 ftprad on 80 tracks on each side; part 1: dimensional, physical and magnetic characteristics; technical corrigendum 1— 2 стр.