@misc{indiciae5de44a7945fd,
  title = {Cassegrain feed for deep-space antennas.},
  author = {Collins, G. W. and Cross, H. E., Jr. and Oishi, R. K.},
  year = {1968},
  url = {https://ntrs.nasa.gov/citations/19680056819},
  note = {Source identifier: 19680056819}
}