TY  - RPRT
TI  - Testing validation tools on CLIPS-based expert systems
AU  - Chang, C. L.
AU  - Stachowitz, R. A.
AU  - Combs, J. B.
PY  - 1991
UR  - https://ntrs.nasa.gov/citations/19920007385
ID  - 19920007385
ER  -