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2. Sharma, B.L. (1989) Defect Diffusion Forum, 64–65, 77.
3. Shaw, D. (1973) in Atomic Diffusion in Semiconductors (ed. D. Shaw), Plenum, London, ch. 1.
4. Shaw, D. (1988) J. Cryst. Growth, 86, 778.
5. Shaw, D. (1992) in Widegap II-VI Compounds for Opto-electronic applications (ed. H.E. Ruda), Chapman & Hall, London, ch. 10.