@misc{indiciaed811f9a87ad1,
  title = {Airframe structural dynamic considerations in rotor design optimization},
  author = {Kvaternik, Raymond G. and Murthy, T. Sreekanta},
  year = {1989},
  url = {https://ntrs.nasa.gov/citations/19900002741},
  note = {Source identifier: 19900002741}
}