1. Structure and Properties of Solid Surfaces;Herring,1953
2. J. W. Cahn and D. W. Hoffman, Acta Met., in press.
3. J. K. Lee and H. I. Aaronson, submitted to Acta Met.
4. D. M. Barnett, J. K. Lee, H. I. Aaronson and K. C. Russell, unpublished research.