1. Brinker, C.J. and Scherer, G.W., Sol-Gel Science (Academic Press, NY, 1990) Ch. 8.
2. Scherer, G.W., J. Non-Cryst. Solids 145, 33?40 (1992).
3. Scherer, G.W., Hdach, H. and Phalippou, J., J. Non-Cryst. Solids, 130, 157?170 (1991); correction 136, 269 (1991).
4. Scherer, G.W., ?Thermal expansion of a viscoelastic gel?, submitted for publication in J. Sol-Gel Sci. Tech.
5. Quinson, J.-F., Repellin Lacroix, M., Pauthe, M., Roche, A., and Scherer, G.W., ?Structure and Permeability of Silica Gels?, to be published in J. Sol-Gel Sci. Tech.