SEARCH Articles Figures Tables Molecular orbital method and sum-over-states perturbation theory Sum Over States methods Sum of states Sum over all filled states Sum over states Sum-Over States Theory of SH Parameters Sum-over states theory Sum-over-States Expression for Diamagnetic Terms Sum-over-States Treatment Sum-over-essential states models Sum-over-states approach Sum-over-states density functional Sum-over-states density functional perturbation Sum-over-states density functional perturbation theory Sum-over-states expression Sum-over-states for PNC amplitude Sum-over-states model The Sum-Over-States Formula Time-Dependent Perturbation Theory The Sum over States Method