@article{9473,
  author = {N. Grevesse and H. Nussbaumer and J.-P. Swings},
  title = {[FE I] Lines: Their transition probabilities and occurrences in sunspots},
  year = {1971},
  journal = {Monthly Notices of the Royal Astronomical Society},
  volume = {151},
  chapter = {239},
  pages = {239-252},
  url = {http://adsabs.harvard.edu/full/1971MNRAS.151..239G},
  doi = {10.1093/mnras/151.2.239},
  note = {JILA Pub. 677},
}