1. The role of catalysis for the clean production of fine chemicals
2. Fine Chemicals through Heterogeneous Catalysis, ed. R. A. Sheldon and H. van Bekkum, Wiley-VCH, Weinheim, 2001, p. 3
3. Handbook of Heterogeneous Catalysis, ed. G. Ertl, H. Knötzinger and J. Weitkamp, Wiley-VCH, Weinheim, 1997
4. J. Hagen , Industrial Catalysis, Wiley-VCH, Weinheim, 1999