@misc{indiciaeec3840b5f366,
  title = {Efficient optimization of integrated aerodynamic-structural design},
  author = {Haftka, R. T. and Grossman, B. and Eppard, W. M. and Kao, P. J.},
  year = {1987},
  url = {https://ntrs.nasa.gov/citations/19930074238},
  note = {Source identifier: 19930074238}
}