@misc{indiciae4d7a39493282,
  title = {Analog Phase Holograms by Electron Beam Lithography},
  author = {Muller, Richard E. and Maker, Paul D.},
  year = {1994},
  url = {https://ntrs.nasa.gov/citations/20210004202},
  note = {Source identifier: 20210004202}
}