@article{798626, author = {Ginger Drake and William Martin}, title = {Ionization Energies and Quantum Electrodynamic Effects in the Lower 1sns and 1snp Levels of Neutral Helium (4He I)}, year = {1998}, number = {76}, month = {1998-01-01 00:01:00}, publisher = {Canadian Journal of Physics}, language = {en}, }