@misc{indiciae7c74680f3891,
  title = {Tiltrotor research aircraft composite blade repairs: Lessons learned},
  author = {Espinosa, Paul S. and Groepler, David R.},
  year = {1991},
  url = {https://ntrs.nasa.gov/citations/19920010321},
  note = {Source identifier: 19920010321}
}