A. Zhaksibaeva, A. Massenova, M. Zhaksibaev, E. Shaikhutdinov, G. Eligbaeva, and H. Nazarimbetova, “Modified zeolite catalysts for alkylation of benzene with propane”, Chemical Bulletin of Kazakh National University, vol. 70, no. 2, pp. 65-69, May 2013.