TY  - RPRT
TI  - PCSYS: The optimal design integration system picture drawing system with hidden line algorithm capability for aerospace vehicle configurations
AU  - Hague, D. S.
AU  - Vanderburg, J. D.
PY  - 1977
UR  - https://ntrs.nasa.gov/citations/19780004751
ID  - 19780004751
ER  -