@misc{indiciaee062c76d5e98,
  title = {Wide-angle, circularly polarized, omnidirectional-array antenna},
  author = {Boyer, R. B. and Case, E. W. and Rosa, J.},
  year = {1971},
  url = {https://ntrs.nasa.gov/citations/19710000033},
  note = {Source identifier: 19710000033}
}