@misc{indiciaefc583a251aeb,
  title = {Elements of NASA's high-speed research program},
  author = {Darden, Christine M. and Olson, Erik D. and Shields, Elwood W.},
  year = {1993},
  url = {https://ntrs.nasa.gov/citations/19930061158},
  note = {Source identifier: 19930061158}
}