@misc{indiciaeddde8d97bf10,
  title = {Space shuttle auxiliary power unit study, phase 2},
  author = {Binsley, R. L. and Krause, A. A. and Maddox, R. D. and Marcy, R. D. and Siegler, R. S.},
  year = {1972},
  url = {https://ntrs.nasa.gov/citations/19720015407},
  note = {Source identifier: 19720015407}
}