@misc{indiciae6be92a17c03a,
  title = {Advanced supersonic propulsion study, phase 3},
  author = {Howlett, R. A. and Johnson, J. and Sabatella, J. and Sewall, T.},
  year = {1976},
  url = {https://ntrs.nasa.gov/citations/19770008098},
  note = {Source identifier: 19770008098}
}