@misc{indiciae9f1bbfddc08d,
  title = {Radio astronomy},
  author = {Wolken, P. R. and Schaffer, R. D. and Gorenstein, M. V.},
  year = {1981},
  url = {https://ntrs.nasa.gov/citations/19810022531},
  note = {Source identifier: 19810022531}
}