TY  - RPRT
TI  - Singularities in Optimal Structural Design
AU  - Patnaik, S. N.
AU  - Guptill, J. D.
AU  - Berke, L.
PY  - 1992
UR  - https://ntrs.nasa.gov/citations/19930036400
ID  - 19930036400
ER  -