Back to matchesWe found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleApplicability of nondegenerate many-body perturbation theory to quasi-degenerate electronic states. II. A two-state model.AuthorsWilson, S.; Jankowski, K.; Paldus, J.PublicationInternational Journal of Quantum Chemistry, 1985, Vol 28, Issue 4, p525ISSN0020-7608Publication typeArticleDOI10.1002/qua.560280409