@misc{indiciaecb2bcc4adf7b,
  title = {More About Graded-Reflectance Optics For Coherent Lidar},
  author = {Tratt, David M.},
  year = {1994},
  url = {https://ntrs.nasa.gov/citations/19940000312},
  note = {Source identifier: 19940000312}
}