@misc{indiciae520021499be5,
  title = {Power processor for a 20CM ion thruster},
  author = {Biess, J. J. and Schoenfeld, A. D. and Cohen, E.},
  year = {1973},
  url = {https://ntrs.nasa.gov/citations/19740008374},
  note = {Source identifier: 19740008374}
}