TY - BOOK AU - Fraga,Serafin AU - Malli,G.L. TI - Many-electron systems: properties and interactions T2 - Studies in physics and chemistry AV - QC721 .F82 U1 - 539.7/211 PY - 1968/// CY - Philadelphia PB - Saunders KW - Electrons KW - Local KW - Many-body problem N1 - Includes bibliographies ER -