DIN EN 27487-2:1991-12
Отменен
Information processing; data interchange on 130 mm (5,25 in) flexible disk cartridges using modified frequency modulation recording at 7958 ftprad, 1,9 tpmm (48 tpi), on both sides; part 2: track format A (ISO 7487-2:1985); german version EN 27487-2:1989
— 11 стр.
