@misc{148626,
  author = {William Martin and Jeffrey Fuhr and Daniel Kelleher and Arlene Musgrove and J Sugar and Wolfgang Wiese and Peter Mohr and Karen Olsen},
  title = {NIST Atomic Spectra Database (version 2.0) (1999)},
  year = {1999},
  month = {1999-01-01},
  publisher = {http://physics.nist.gov/asd2},
  language = {en},
}