TY  - RPRT
TI  - Guidelines on electronic mail security 
AU  - Tracy, M C
AU  - Jansen, W
AU  - Scarfone, K A
AU  - Butterfield, J
PY  - 2007
PB  - National Institute of Standards and Technology
CY  - Gaithersburg, MD
SN  - NIST SP 800-45ver2
DO  - 10.6028/NIST.SP.800-45ver2
ER  -