| Заглавие на английском языке | 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 1: dimensional, physical and magnetic characteristics (ISO 7487-1:1985); german version EN 27487-1:1989 |