@misc{indiciae945bd0bb50d2,
  title = {XV-15 tilt rotor test - Progress report},
  author = {Brown, J. H., Jr. and Edenborough, H. K. and Few, D. D.},
  year = {1977},
  url = {https://ntrs.nasa.gov/citations/19780039895},
  note = {Source identifier: 19780039895}
}