TY  - RPRT
TI  - Validation testing system requirements 
AU  - Morris, Katherine C
AU  - McLay, Michael
AU  - Carr, Peter J
PY  - 1991
PB  - National Institute of Standards and Technology
CY  - Gaithersburg, MD
SN  - NIST IR 4676
DO  - 10.6028/NIST.IR.4676
ER  -