@misc{indiciae0ea5533e7a3d,
  title = {Fresnel Lens},
  author = {Watson, Michael D. and Scott, Steve and Lamb, David and Zimmerman, Joe E.},
  year = {2001},
  url = {https://ntrs.nasa.gov/citations/20010048754},
  note = {Source identifier: 20010048754}
}