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2. B. Walser, E.S. Kayali, and O.D. Sherby:Proc. 4th Int. Conf. on Strength of Metals and Alloys, Nancy, France, Aug. 1976, Laboratoire de Physique du Solide, ENSMIM,INPL, vol. 1, pp. 266–70.
3. O.D. Sherby, C.M. Young, B. Walser, and E.M. Cady, Jr.: U.S. Patent 3,951,697, April 20, 1976.
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