@misc{indiciaebb2e0628a384,
  title = {Engineering aids for the handicapped},
  author = {Burr, J. G. and Knoebel, H. W. and Stupp, G.},
  year = {1969},
  url = {https://ntrs.nasa.gov/citations/19700008238},
  note = {Source identifier: 19700008238}
}