Fraga, Serafin Many-electron systems : properties and interactions / Serafin Fraga and Gulzari Malli. - Philadelphia : Saunders, 1968. - xvi, 196 p. : ill. ; 24 cm. - Studies in physics and chemistry ; no. 7 . Includes bibliographies and index Subjects--Topical Terms: Electrons. Dewey Class. No.: 539.72112 / FRM 1968