@misc{indiciae27180dafa835,
  title = {Radiometer requirements for Earth-observation systems using large space antennas},
  author = {Keafer, L. S., Jr. and Harrington, R. F.},
  year = {1983},
  url = {https://ntrs.nasa.gov/citations/19830020139},
  note = {Source identifier: 19830020139}
}