@misc{891871,
  author = {Jean Sansonetti},
  title = {Spectroscopic Data for Neutral Francium (Fr I)},
  year = {2018},
  month = {2018-11-14 14:11:29},
  publisher = {J. Phys. & Chem. Ref. Data (JPCRD), National Institute of Standards and Technology, Gaithersburg, MD},
  language = {en},
}