@article{11535,
  author = {H. Friedrich and E. Trefftz},
  title = {Configuration mixing and oscillator strengths for some two-electron spectra (Ca I, Ba I, and others)},
  year = {1969},
  journal = {Journal of Quantitative Spectroscopy and Radiative Transfer},
  volume = {9},
  pages = {333-359},
  month = {Jan-03-1969},
  issn = {00224073},
  url = {http://linkinghub.elsevier.com/retrieve/pii/0022407369900302},
  doi = {10.1016/0022-4073(69)90030-2},
}