TY  - GEN
AU  - Helsing, Cheryl
AU  - Swanson, Marianne
AU  - Todd, Mary Anne
C2  - , National Institute of Standards and Technology, Gaithersburg, MD
DA  - 1989-01-01 05:01:00
DO  - https://doi.org/10.6028/NIST.SP.500-171
LA  - en
PB  - , National Institute of Standards and Technology, Gaithersburg, MD
PY  - 1989
TI  - Computer user's guide to the protection of informtion resources:
ER  -