@misc{indiciae811ef13230e3,
  title = {Auxiliary power unit design studies. Space shuttle APU system selection and performance},
  author = {Burriss, W. L. and Hamilton, M. L.},
  year = {1971},
  url = {https://ntrs.nasa.gov/citations/19710020129},
  note = {Source identifier: 19710020129}
}