Transition energies for excited states of helium: An evaluation of two simple approximation techniques
Weida, Miles J., Schroeder, Thomas M., Waxer, Leon J., Whitten, Barbara L.Volume:
60
Year:
1992
Language:
english
Journal:
American Journal of Physics
DOI:
10.1119/1.16851
File:
PDF, 928 KB
english, 1992