1. R. N. Stevens and R. Dutton, Scripta Met., this issue, henceforth cited as SD.
2. The Physics of Powder Metallurgy;Herring,1951
3. Diffusional Viscosity of a Polycrystalline Solid
4. Atom Movements;Bardeen,1951
5. Structure and Properties of Solid Surfaces;Herring,1953