@misc{indiciae5326c90d8814,
  title = {Aperture plane potential control for thermal ion measurements},
  author = {Olsen, R. C. and Chappell, C. R. and Burch, J. L.},
  year = {1986},
  url = {https://ntrs.nasa.gov/citations/19860048615},
  note = {Source identifier: 19860048615}
}