TY  - RPRT
TI  - Guideline for implementing cryptography in the federal government 
AU  - Lee, Annabelle
PY  - 1999
PB  - National Institute of Standards and Technology
CY  - Gaithersburg, MD
SN  - NIST SP 800-21
DO  - 10.6028/NIST.SP.800-21
ER  -