Schechter, Martin. Operator methods in quantum mechanics / Martin Schechter. - New York : North Holland , c1981. - xx, 324 p. ; ills. ; 24 cm. Includes index. Bibliography: p. [319]-321. ISBN: 0444004106 Subjects--Topical Terms: Operator theory.Quantum theory. Dewey Class. No.: 515.724 / SCO 1981