@misc{indiciae3fe12a6df802,
  title = {High-speed pitch angle sorter},
  author = {Keller, John W. and Torbert, R. B. and Vandiver, James},
  year = {1991},
  url = {https://ntrs.nasa.gov/citations/19910051625},
  note = {Source identifier: 19910051625}
}