@misc{indiciaec11ccec549dd,
  title = {Extended-performance 8-cm ion thruster operation},
  author = {Wessel, F. J. and Williamson, W. S. and Dulgeroff, C. R.},
  year = {1982},
  url = {https://ntrs.nasa.gov/citations/19830031294},
  note = {Source identifier: 19830031294}
}