@misc{indiciae3f51e1a67e51,
  title = {Singularities in Optimal Structural Design},
  author = {Patnaik, S. N. and Guptill, J. D. and Berke, L.},
  year = {1992},
  url = {https://ntrs.nasa.gov/citations/19930036400},
  note = {Source identifier: 19930036400}
}