@misc{indiciaed42ec2dabaeb,
  title = {Gallium Electromagnetic (GEM) Thrustor Concept and Design},
  author = {Polzin, Kurt A. and Markusic, Thomas E.},
  year = {2006},
  url = {https://ntrs.nasa.gov/citations/20060047795},
  note = {Source identifier: 20060047795}
}