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DIN EN 27487-3:1991-12

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 3: track format B (ISO 7487-3:1986); german version EN 27487-3:1989 — 8 стр.