@misc{indiciae5732d9cd2e0b,
  title = {Seeded cesium plasma diodes and the Penning effect},
  author = {Kaufman, A. J. and Schrenk, G. L.},
  year = {1969},
  url = {https://ntrs.nasa.gov/citations/19700048922},
  note = {Source identifier: 19700048922}
}