@misc{indiciae35a88d917b30,
  title = {Experimental studies of an ECR plasma thruster},
  author = {Kaufman, D. A. and Goodwin, D. G. and Sercel, J. C.},
  year = {1993},
  url = {https://ntrs.nasa.gov/citations/19930065932},
  note = {Source identifier: 19930065932}
}