@article{11173,
  author = {Roy Garstang and D. Mayers},
  title = {Screening constants for relativistic wave functions},
  year = {1966},
  journal = {Mathematical Proceedings of the Cambridge Philosophical Society},
  volume = {62},
  pages = {777},
  month = {Jan-10-1966},
  issn = {0305-0041},
  doi = {10.1017/S0305004100040482},
}