TY  - RPRT
TI  - Highway concrete (HWYCON) expert system user reference and enhancement guide 
AU  - Klieger, Paul
AU  - Snyder, Kenneth
PY  - 1993
PB  - National Institute of Standards and Technology
CY  - Gaithersburg, MD
SN  - NIST IR 5184
DO  - 10.6028/NIST.IR.5184
ER  -