1. Audebert P, Demaille C and Sanchez C 1993Chem. Mater. 5 911
2. Avnir D, Braun S, Lev O and Ottolenghi M 1994Chem. Mater. 6 1605
3. Barreau J Y, Da Costa J M, Desportes I, Livage J, Monjour L and Gentilini M 1994C.R. Acad. Sci. Paris 317 653
4. Blanchard J, Barboux-Doeuff S, Maquet J and Sanchez C 1995New J. Chem. 19 929
5. Boilot J P, Chaput F, Gacoin T, Malier L, Canva M, Brun A, Lévy Y and Galaup J P 1996C.R. Acad. Sci. Paris 322 27