1. J.R. Rostrup-Nielsen, in:Catalysis — Science and Technology, Vol. 5, eds. J.R. Anderson and M. Boudart (Springer, Berlin, 1984) p. 1.
2. K.B. Mok, J.R.H. Ross and R.M. Sambrook,Preparation of Catalysts III, eds. G. Poncelet, P. Grange and P.A. Jacobs, (Elsevier, Amsterdam, 1983) p. 291.
3. T. Borowiecki, Appl. Catal. 10 (1984) 273.
4. K.S.M. Bhatta and C.M. Dixon, Ind. Eng. Chem. Prod. Res. Dev. 8 (1969) 324.
5. Q. Zhuang, Y. Qin and L. Chang, Appl. Catal. 70 (1991) 1.