1. J.H. Sinfelt: Prog. Solid-State Chem. 10, 55 (1975);
2. J.H. Sinfelt: Catal. Rev. 3, 175 (1969);
3. J.H. Sinfelt: in Catalysis Science and Technology ed. by J.R. Anderson, M. Boudart, (Springer, Berlin, Heidelberg 1981.) Vol. 1, p. 257
4. W.H. Weinberg: in Survey of Progress in Chemistry, ed. by A. Scott, G. Wubbel (Academic, New York 1983) Vol. 10 p. 1
5. R. Pitchai, K. Klier: Catal. Rev. Sci. Eng. 28, 13 (1986)