@misc{indiciae0704be138812,
  title = {Average charge detector for mass spectrometers.},
  author = {Burrous, C. N. and Dimeff, J. and Lieber, A. J.},
  year = {1966},
  url = {https://ntrs.nasa.gov/citations/19670033963},
  note = {Source identifier: 19670033963}
}