Information processing. 9-track, 12,7 mm (0,5 in) wide magnetic tape for information interchange using phase encoding at 126 ftpmm (3200 ftpi) - 63 cpmm (1600 cpi)— 20 стр.
Information processing. 9-track, 12,7 mm (0,5 in) wide magnetic tape for information interchange using NRZ1 at 32 ftpmm (800 ftpi). 32 cpmm (800 cpi)— 16 стр.