GREEN'S FUNCTION APPROACH TO THE DIRECT PERTURBATION CALCULATION OF THE EXCITATION ENERGIES OF CLOSED SHELL FERMION SYSTEMS.PALDUS J; CIZEK J.1974; J. CHEM. PHYS.; U.S.A.; DA. 1974; VOL. 60; NO 1; PP. 149-163; BIBL. 38 REF.Article

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INNER PRODUCT REPRESENTATIONS OF MANY-ELECTRON INTEGRALS.OKNINSKI A.1976; BULL. ACAD. POLON. SCI., SCI. CHIM.; POLOGNE; DA. 1976; VOL. 24; NO 4; PP. 263-266; ABS. RUSSE; BIBL. 8 REF.Article

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SELECTIVE SUMMATION IN GENERALIZED PERTURBED HARTREE-FOCK THEORYMCDOWELL K.1982; J. CHEM. PHYS.; ISSN 0021-9606; USA; DA. 1982; VOL. 76; NO 11; PP. 5427-5440; BIBL. 26 REF.Article

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SPIN-FREE QUANTUM CHEMISTRY. XXI: HARTREE-FOCK THEORYMATSEN FA; NELIN CJ.1979; INTERNATION. J. QUANTUM CHEM.; USA; DA. 1979; VOL. 15; NO 2; PP. 751-767; ABS. FRE/GER; BIBL. 18 REF.Article

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APPLICATION OF GRAPHICAL METHODS OF SPIN ALGEBRAS TO LIMITED CI APPROACHES. I. CLOSED SHELL CASE.PALDUS J; ADAMS BG; CIZEK J et al.1977; INTERNATION. J. QUANTUM CHEM.; U.S.A.; DA. 1977; VOL. 11; NO 5; PP. 813-848; ABS. FR. ALLEM.; BIBL. 1 P. 1/2Article

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MOMENTUM EIGENFUNCTIONS IN THE COMPLEX MOMENTUM PLANE. III: HARTREE-FOCK FUNCTIONSHUO WM; LASSETTRE EN.1980; J. CHEM. PHYS.; ISSN 0021-9606; USA; DA. 1980; VOL. 72; NO 4; PP. 2374-2383; BIBL. 33 REF.Article

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