@misc{indiciae0681971ca98a,
  title = {High Angular Sensitivity, Absolute Rotary Encoding Device with Polygonal Mirror and Stand-Alone Diffraction Gratings},
  author = {Leviton, Douglas B.},
  year = {1996},
  url = {https://ntrs.nasa.gov/citations/20160001131},
  note = {Source identifier: 20160001131}
}