@misc{indiciae6ae5ac67df42,
  title = {Optimization of Air-Breathing Propulsion Engine Concepts},
  author = {Patnaik, Surya N. and Hopkins, Dale A.},
  year = {1997},
  url = {https://ntrs.nasa.gov/citations/19970026136},
  note = {Source identifier: 19970026136}
}