@misc{indiciae7548a9712ca7,
  title = {Structural sizing by generalized, multilevel optimization},
  author = {Sobieszczanski-Sobieski, Jaroslaw and James, Benjamin B. and Riley, Michael F.},
  year = {1987},
  url = {https://ntrs.nasa.gov/citations/19870040675},
  note = {Source identifier: 19870040675}
}