TY - RPRT TI - Technology assessment : methods for measuring the level of computer security AU - Neugent, William AU - Gilligan, John AU - Hoffman, Lance AU - Ruthberg, Zella G PY - 1985 PB - National Bureau of Standards CY - Gaithersburg, MD SN - NBS SP 500-133 DO - 10.6028/NBS.SP.500-133 ER -