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DIN EN 28860-2:1991-12

Отменен
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 2: track format (ISO 8860-2:1987); german version EN 28860-2:1989 — 8 стр.