@misc{indiciae2e6e30022dae,
  title = {A 5 x 40 cm rectangular-beam multipole ion source},
  author = {Robinson, R. S. and Kaufman, H. R. and Haynes, C. M.},
  year = {1981},
  url = {https://ntrs.nasa.gov/citations/19810045125},
  note = {Source identifier: 19810045125}
}