@misc{814461,
  author = {Ulrich Jentschura and Peter Mohr},
  title = {Precise theory of levels of hydrogen and deuterium: The two-photon radiative corrections},
  year = {2005},
  month = {2005-01-01 00:01:00},
  publisher = {http://physics.nist.gov/hdel},
  language = {en},
}