@misc{indiciae3b9e22c2dded,
  title = {Non-ambipolar radio-frequency plasma electron source and systems and methods for generating electron beams},
  author = {Hershkowitz, Noah and Longmier, Benjamin and Baalrud, Scott},
  year = {2011},
  url = {https://ntrs.nasa.gov/citations/20110004225},
  note = {Source identifier: 20110004225}
}