@misc{785276, 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 = {NIST Interagency/Internal Report (NISTIR), National Institute of Standards and Technology, Gaithersburg, MD}, language = {en}, }