1. Riedel T, Schaub G (2003) Top Catal 26(145):156
2. Bianchi CL, Vitali S, Ragaini V (1998) Stud Surf Sci Catal 119(167):172
3. Jacobs G, Das TK, Zhang Y, Li J, Racoillet G, Davis BH (2002) Appl Catal A 233(263):281
4. Sun S, Fujimoto K, Yoneyama Y, Tsubaki N (2002) Fuel 81(1583):1591
5. Sang SH, Lee SB, Bae JW, Prasad PSS, Jun KW (2008) Catal Commun 9(2282):2286