@misc{indiciaea723183abe3b,
  title = {An improved algorithm for optimum structural design with multiple frequency constraints},
  author = {Mcgee, Oliver G. and Phan, Khing F.},
  year = {1989},
  url = {https://ntrs.nasa.gov/citations/19890015858},
  note = {Source identifier: 19890015858}
}