@misc{indiciae9a0a8ed4887b,
  title = {EXPERIMENTAL INVESTIGATION FOR OBTAINING STABLE NEGATIVE IONS.},
  author = {Teem, J. M. and Zuccaro, D. E.},
  year = {1961},
  url = {https://ntrs.nasa.gov/citations/19620001534},
  note = {Source identifier: 19620001534}
}