1. Gierke, T.D., Munn, G.E., and Wilson, F.C., J. Polym. Sci., 1981, vol. 19, no. 11, p. 1687.
2. Heiter-Wirguin, C., J. Memb. Sci., 1996, vol. 120, no. 1, p. 1.
3. Petushkov, A.A., Shilov, S.M., and Pak, V.N., J. Lumin., 2006, vol. 116, no. 1–2, p. 127–131.
4. Gavronskaya, K.A., Petushkov, A.A., Shilov, S.M., and Pak, V.N., Zh. Prikl. Khim., 2006, vol. 79, no. 7, p. 1097.
5. Shilov, S.M., Gavronskaya, K.A., and Pak, V.N., Zh. Obshch. Khim., 200., vol. 78, no. 2, p. 187.