@misc{indiciaefda90bc724d7,
  title = {Subsonic flutter analysis addition to NASTRAN},
  author = {Doggett, R. V., Jr. and Harder, R. L.},
  year = {1973},
  url = {https://ntrs.nasa.gov/citations/19740006496},
  note = {Source identifier: 19740006496}
}