@misc{indiciae656f5259603e,
  title = {Diffractive optics fabricated by direct write methods with an electron beam},
  author = {Kress, Bernard and Zaleta, David and Daschner, Walter and Urquhart, Kris and Stein, Robert and Lee, Sing H.},
  year = {1993},
  url = {https://ntrs.nasa.gov/citations/19940012874},
  note = {Source identifier: 19940012874}
}