@article{10917,
  author = {Sydney Geltman},
  title = {Double-photon photo-detachment of negative ions},
  year = {1963},
  journal = {Physics Letters},
  volume = {4},
  pages = {168-169},
  month = {Jan-04-1963},
  issn = {00319163},
  doi = {10.1016/0031-9163(63)90348-2},
}