@misc{indiciaef31a2f0f8380,
  title = {A programing system for research and applications in structural optimization},
  author = {Sobieszczanski-Sobieski, J. and Rogers, J. L., Jr.},
  year = {1981},
  url = {https://ntrs.nasa.gov/citations/19810065577},
  note = {Source identifier: 19810065577}
}