@misc{indiciae684096fbb9e8,
  title = {Noise diffraction patterns eliminated in coherent optical systems},
  author = {Grebowsky, G. R. and Hermann, R. L. and Paull, H. B. and Shulman, A. R.},
  year = {1971},
  url = {https://ntrs.nasa.gov/citations/19710000235},
  note = {Source identifier: 19710000235}
}