Title | Journal | Journal Categories | Citations | Publication Date |
---|---|---|---|---|
10.1103/PhysRevA.51.73 | 1995 | |||
Variational eigenvalues for the S states of helium | Chemical Physics Letters |
| 93 | 1994 |
Convergence patterns of the configuration-interaction expansion for excited 21S and 31S states of the helium atom | Journal of Physics B: Atomic and Molecular Physics | 5 | 1977 | |
Klar, H., Klar, M., An accurate treatment of two-electron systems using hyperspherical coordinates,J. Phys., B, 1980, 15: 1–057. | 1980 |