@misc{indiciaeb20b801921c5,
  title = {Study of an instrument for sensing errors in a telescope wavefront},
  author = {Golden, L. J. and Shack, R. V. and Slater, D. N.},
  year = {1973},
  url = {https://ntrs.nasa.gov/citations/19730023604},
  note = {Source identifier: 19730023604}
}