@article{11614,
  author = {H. Friedrich and E. Trefftz},
  title = {Semiempirical potentials for some atomic cores: C+4, N+5, O+6, Mg+2, Al+3, Si+4, Ca+2, Ba+2},
  year = {1969},
  journal = {Journal of Quantitative Spectroscopy and Radiative Transfer},
  volume = {9},
  pages = {245-254},
  month = {Jan-02-1969},
  issn = {00224073},
  url = {http://linkinghub.elsevier.com/retrieve/pii/0022407369900892},
  doi = {10.1016/0022-4073(69)90089-2},
}