Solid state physics. Vol. 3 : advances in research and applications / editors : Frederick Seitz, David Turnbull. - New York : Academic Press, 1956. - xiv, 588 p. : ill. Includes bibliographical references p. 558-564 and indexes. Subjects--Index Terms: ფიზიკა მყარი გარემოს ფიზიკა Universal Decimal Class. No.: 539.2