Hartree-Fock theory Journal Article 3 Møller-Plesset second-order perturbation theory 1 Research Support, Non-U.S. Gov't 1 complete basis-set limit 1 confined atoms 1 correlated methods 1 mehr ... coupled cluster with singles and doubles with perturbative triples 1 density functional theory 1 density-functional theory 1 electron density 1 exact exchange 1 integral algorithms 1 many-body interaction energy 1 quantum chemistry 1 weniger ...