@misc{139916,
  author = {William Martin and Jeffrey Fuhr and Arlene Musgrove and J Sugar and Wolfgang Wiese and J Coursey and G Dalton and Robert Dragoset and Edward Saloman},
  title = {NIST Atomic Spectroscopic Database (version 1.3)},
  year = {1999},
  month = {1999-01-01},
  publisher = {http://physics.nist.gov/asd1},
  language = {en},
}