@misc{indiciae0943e7709a2a,
  title = {Circulator having quarter wavelength resonant post and parametric amplifier circuits utilizing the same Patent},
  author = {Clauss, R. C.},
  year = {1967},
  url = {https://ntrs.nasa.gov/citations/19710013621},
  note = {Source identifier: 19710013621}
}