Putnam, C. R. 1924- Commutation properties of Hilbert space operators, and related topics / [by] C. R. Putnam. - Berlin : New York : Springer-Verlag, 1967. - xi, 167 p. ; 24 cm. Bibliography: p. [147]-160 and index Subjects--Topical Terms: Hilbert space. Dewey Class. No.: 515.733 / PUC 1967