@misc{indiciae99a08ff78d8d,
  title = {General Rotorcraft Aeromechanical Stability Program (GRASP): Theory manual},
  author = {Hodges, Dewey H. and Hopkins, A. Stewart and Kunz, Donald L. and Hinnant, Howard E.},
  year = {1990},
  url = {https://ntrs.nasa.gov/citations/19910004449},
  note = {Source identifier: 19910004449}
}