@misc{indiciaee27a3d859175,
  title = {ASTROP2 users manual: A program for aeroelastic stability analysis of propfans},
  author = {Narayanan, G. V. and Kaza, K. R. V.},
  year = {1991},
  url = {https://ntrs.nasa.gov/citations/19910019313},
  note = {Source identifier: 19910019313}
}