TY  - RPRT
TI  - DISTRIB I 
AU  - Gilsinn, David
AU  - Kraft, Richard
PY  - 1979
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS SP 400-57
DO  - 10.6028/NBS.SP.400-57
ER  -