Colojoara, Ion Theory of Generalized spectral operators / Ion Colojoara and ciprian Foios - New York : Gordon and Breach, c1968 - xii, 232p. ; 24 cm. - mathematics and its applications. series of monographs and texts ; 9 . Includes bibliographical references and index ISBN: ? 8.75 Subjects--Topical Terms: TopologySpectral theory (Mathematics) Dewey Class. No.: 517.7