@misc{indiciae94f6601605e2,
  title = {Evolution and status of the 30-cm engineering model ion thruster},
  author = {Masek, T. D. and Poeschel, R. L. and Collett, C. R. and Schnelker, D. E.},
  year = {1976},
  url = {https://ntrs.nasa.gov/citations/19770032239},
  note = {Source identifier: 19770032239}
}