TY  - RPRT
TI  - SRI International: improving the security of your UNIX system
AU  - Roback, Edward
PY  - 1990
PB  - National Institute of Standards and Technology
CY  - Gaithersburg, MD
SN  - NIST IR 4453
DO  - 10.6028/NIST.IR.4453
ER  -