@misc{indiciae300e8515286c,
  title = {Future Aerospace Technology in the Service of the Alliance: Sustained Hypersonic Flight - Volume 3},
  author = {Advisory Group for Aerospace Research and Development},
  year = {1997},
  url = {https://ntrs.nasa.gov/citations/19980018672},
  note = {Source identifier: 19980018672}
}