Plesner, Abram I. Spectral theory of linear operators Abram I. Plesner; (tr. by) Merlynd K. Nestell, Alan G. Gibbs - New York Frederick Ungar pub. 1969 - (v.1-xii, 235 p.) ISBN: 804447667 Subjects--Topical Terms: Linear operators Dewey Class. No.: 515.7246 / PLE