Dietrich, I. Superconducting electron-optic devices / I. Dietrich. - New York : Plenum Press , 1976. - ix, 140 p : ill. , 24 cm. - The International cryogenics monograph series . Includes index. Bibliography: p. 129-135. ISBN: 0306308827 19.50 Subjects--Topical Terms: Electron microscope.Superconductivity.