@misc{indiciaed9f89479aabd,
  title = {Propfan Test Assessment (PTA)},
  author = {Little, B. H. and Poland, D. T. and Bartel, H. W. and Withers, C. C. and Brown, P. C.},
  year = {1989},
  url = {https://ntrs.nasa.gov/citations/19900002423},
  note = {Source identifier: 19900002423}
}