TY  - RPRT
TI  - Knowledge-based systems and NASA's software support environment
AU  - Dugan, Tim
AU  - Carmody, Cora
AU  - Lennington, Kent
AU  - Nelson, Bob
PY  - 1990
UR  - https://ntrs.nasa.gov/citations/19900017980
ID  - 19900017980
ER  -