@misc{indiciae85a07f215bdd,
  title = {Optimization of helicopter airframe structures for vibration reduction - Considerations, formulations, and applications},
  author = {Sreekanta Murthy, T.},
  year = {1991},
  url = {https://ntrs.nasa.gov/citations/19910048910},
  note = {Source identifier: 19910048910}
}