1. Leovac, V.M., Cesljevic, V.I., Bogdanovic, G.A., and Divjakovic, V., Acta Cryst., 2000, vol. C 56, p. 936.
2. Kasuga, N.C., Sekino, K., Kaumo, C., et al., J. Inorg. Biochem., 2001, vol. 84, p. 55.
3. Soykan, C. and Erol, I., J. Polym. Science, Pt A., Polym. Chem., 2003, vol. 41, no. 13, p. 1942.
4. Beraldo, H., Quim Nova, 2004, vol. 27, p. 461.
5. Anderson, R.J., Cioudsdale, I.S., Lamoreaux, R.J., et al., US Patent, 2000, vol. 6, no. 110, p. 869.