@misc{indiciae36f6f70dfad5,
  title = {Ion-beam focusing in a double-plasma device},
  author = {Johnson, James C. and D'Angelo, Nicola and Merlino, Robert L.},
  year = {1988},
  url = {https://ntrs.nasa.gov/citations/19890026877},
  note = {Source identifier: 19890026877}
}