@misc{indiciae177c75382e33,
  title = {A general method for designing circular array antennas to obtain quasi-omnidirectional patterns},
  author = {Cockrell, C. R. and Croswell, W. F.},
  year = {1967},
  url = {https://ntrs.nasa.gov/citations/19680002007},
  note = {Source identifier: 19680002007}
}