1. Variational Calculations of the 2³S State of Helium Traub, Joseph F. 1958 Articles Helium ionsElectron configurationChemistry--Mathematical models
2. Variational Calculations of Energy and Fine Structure for the 2³P State of Helium Traub, Joseph F. 1959 Articles ChemistryNumerical calculations--Data processingMicrophysics