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2 matching references were found.
Beebe, N.H.F.; Thulstrup, E.W.; Andersen, A., Configuration interaction calculations of low-lying electronic states of O2,O2+, and O22+, J. Chem. Phys., 1976, 64, 2080. [all data]
Elander, N.; Oddershede, J.; Beebe, N.H.F., On the A1«PI»-X1«SIGMA»+ band system in CH+ and CD+: theoretical spectroscopic constants and lifetimes, Astrophys. J., 1977, 216, 165-173. [all data]