TY - RPRT TI - Federal Information Processing Standards Publication: 130 mm (5.25 in) flexible disk cartridge track format using two-frequency recording at 3979 bprad on one side - 1.9 tpmm (48 tpi) for information interchange PY - 1985 PB - National Bureau of Standards CY - Gaithersburg, MD SN - NBS FIPS 116-Sep1985 DO - 10.6028/NBS.FIPS.116-Sep1985 ER -