1. Ahmad, A.L., Mat, Yasin, N.H., Derek, C.J.C., and Lim, J.K., Renewable Sustainable Energy Rev., 2011, vol. 15, p. 584.
2. Perego, C. and Bosetti, A., Microporous Mesoporous Mater., 2011, vol. 144, nos. 1–3, p. 28.
3. Mamedova, T.A., Andryushchenko, N.K., and Askerova, E.N., Khim. Tekhnol. Topliv Masel, 2010, no. 3, p. 8.
4. Holmgren, J., Gosling, C., and Marinangell, G., Neftegaz. Tekhnol., 2006, vol. 1, p. 78.
5. Helwani, Z., Othman, M.R., Aziz, N., Fernando, W.J.N., and Kim, J., Fuel Process. Technol., 2009, vol. 90, p. 1502.