@article{10998,
  author = {Sydney Geltman},
  title = {Continuum States of H- and the Free-Free Absorption Coefficient},
  year = {1965},
  journal = {The Astrophysical Journal},
  volume = {141},
  pages = {376},
  month = {1965-04},
  issn = {0004-637X},
  url = {http://adsabs.harvard.edu/full/1965ApJ...141..376G},
  doi = {10.1086/148133},
}