@misc{indiciae54244289f867,
  title = {High efficiency multifrequency feed},
  author = {Ajioka, J. S. and Tsuda, G. I. and Leeper, W. A.},
  year = {1974},
  url = {https://ntrs.nasa.gov/citations/19740012750},
  note = {Source identifier: 19740012750}
}