@misc{indiciaec47e4ada1c06,
  title = {Concurrent optimization of airframe and engine design parameters},
  author = {Lavelle, Thomas M. and Plencner, Robert M. and Seidel, Jonathan A.},
  year = {1991},
  url = {https://ntrs.nasa.gov/citations/19930003214},
  note = {Source identifier: 19930003214}
}