@misc{indiciae839c6af37e68,
  title = {Vertical-Screw-Auger Conveyer Feeder},
  author = {Walton, Otis and Vollmer, Hubert J.},
  year = {2016},
  url = {https://ntrs.nasa.gov/citations/20160007308},
  note = {Source identifier: 20160007308}
}