1. Kugatov, P.V. and Zhirnov, B.S., J. Porous Mater., 2013, vol. 20, no. 4, p. 875.
2. Yue, Z. and Economy, J., Microporous Mesoporous Mater., 2006, vol. 96, nos. 1–3, p. 314.
3. Surovikin, V.F., Surovikin, Yu.V., and Tsekhanovich, M.S., Ross. Khim. Zh., 2007, vol. 51, no. 4, p. 111.
4. Fedorov, N.F., Ross. Khim. Zh., 1995, vol. 39, no. 6, p. 73.
5. Watanabe, K., Ishihara, T., and Sakaguchi, Y., US Patent 5236688US, 1993.