Klemperer, O. Electron optics / O. Klemperer. - 2nd ed. - Cambridge : University press, 1953. - xii, 471 p. : ill. ; 22 cm. Includes index. Bibliography : p. 443-459. 337 337 Subjects--Topical Terms: Electron optics. Dewey Class. No.: 537.1 / K676e