%0 Journal Article %T Near-degeneracy corrections for second-order perturbation theory: comparison of two approaches %A Szabados, Ágnes %A Assfeld, Xavier %A Surján, Péter R. %J Theoretical Chemistry Accounts %V 105 %N 6 %P 408-412 %@ 1432-881X %D 2001-05-07 %I Springer-Verlag %~ DeepDyve