@misc{indiciaef30549fd67a9,
  title = {Planetary radar},
  author = {Shaffer, R. D. and Mccluskey, J. T. and Downs, G. S.},
  year = {1981},
  url = {https://ntrs.nasa.gov/citations/19820003436},
  note = {Source identifier: 19820003436}
}