1. G. W. Morey, ?The Property of Glass? (Reinhold, New York, 1954) Ch. 4 and 11.
2. W. A. Weyl and E. C. Marboe, ?The Constitution of Glasses?, Vol. II, Part 2 (Wiley, New York, 1967) pp. 1086?149.
3. T. Minami and J. D. Mackenzie, J. Amer. Ceram. Soc. 60 (1977) 232.
4. K. Matusita and J. D. Mackenzie, J. Mater. Sci. 13 (1978) 1026.
5. H. M. Garfinkel, D. L. Rothermal and S. D. Stookey, ?Advances in Glass Technology? (Plenum, New York, 1962) pp. 404?11.