@misc{indiciaeb0677c6025bf,
  title = {Spherical omnidirectional antenna.},
  author = {Checcacci, P. F. and Fabeni, P. and Pazzi, G. P. and Ranfagni, A.},
  year = {1967},
  url = {https://ntrs.nasa.gov/citations/19680034092},
  note = {Source identifier: 19680034092}
}