@misc{indiciae29dde863d234,
  title = {Optical superheterodyne receiver.},
  author = {Duval, K. and Lang, K. and Lucy, R. F. and Peters, C. J.},
  year = {1967},
  url = {https://ntrs.nasa.gov/citations/19670056956},
  note = {Source identifier: 19670056956}
}