@misc{indiciaec780a493fef9,
  title = {Solid-state plasma controlled nonreciprocal microwave device.},
  author = {Hershberger, W. D. and Kuno, H. J.},
  year = {1967},
  url = {https://ntrs.nasa.gov/citations/19670043361},
  note = {Source identifier: 19670043361}
}