@article{10587,
  author = {Roy Garstang and W. Robb and S. Rountree},
  title = {Electron collisional excitation cross sections for Fe III and Fe VI and iron abundances in gaseous nebulae},
  year = {1978},
  journal = {The Astrophysical Journal},
  volume = {222},
  pages = {384},
  month = {Jan-06-1978},
  issn = {0004-637X},
  url = {http://adsabs.harvard.edu/full/1978ApJ...222..384G},
  doi = {10.1086/156152},
}