@article{7401,
  author = {L Pendrill and K. Niemax},
  title = {Isotope shifts of energy levels in 40K and 39K},
  year = {1982},
  journal = {Journal of Physics B: Atomic and Molecular Physics},
  volume = {15},
  pages = {L147 - L151},
  month = {Feb-03-1983},
  issn = {0022-3700},
  url = {http://stacks.iop.org/0022-3700/15/i=5/a=003?key=crossref.e0c844e5fb589ef921dd3bc13b9933ef},
  doi = {10.1088/0022-3700/15/5/003},
}