@misc{indiciae6324dae3b7ec,
  title = {Improved multilevel optimization approach for the design of complex engineering systems},
  author = {Barthelemy, Jean-Francois M. and Riley, Michael F.},
  year = {1988},
  url = {https://ntrs.nasa.gov/citations/19880055795},
  note = {Source identifier: 19880055795}
}