@misc{indiciaee175b601b4c5,
  title = {Optical heterodyne receiver design by nonlinear recursive estimation techniques},
  author = {Pratt, W. K. and Thompson, G. D., Jr.},
  year = {1970},
  url = {https://ntrs.nasa.gov/citations/19710031329},
  note = {Source identifier: 19710031329}
}