1. See D.R. Gaskell, Introduction to Metallurgical Thermodynamics, p. 342, McGraw-Hill, 1973.
2. For a more detailed treatment of the structures of solid solutions, inter-metallic compounds and intermediate phases see, for example, Chapters 4 and 5 in Physical Metallurgy, R.W. Cahn (Ed.), North-Holland, 1974 (second edition).
3. For a treatment of nonspherical precipitates see M. Ferrante and R.D. Doherty, Acta Metallurgica, 27: (1979) 1603.
4. See, for example, M. Hillert, Phase Transformations, American Society for Metals, Ohio, 1970, Chapter 5.