@article{814471,
  author = {S Blundell and Peter Mohr and W Johnson and J Sapirstein},
  title = {Evaluation of two-photon exchange graphs for highly charged heliumlike ions},
  year = {1993},
  number = {48},
  month = {1993-01-01 00:01:00},
  publisher = {Physical Review A (Atomic, Molecular and Optical Physics)},
  language = {en},
}