Home › Authors › Friedrich G. Helfferich 👤 Friedrich G. Helfferich b. 1922 ยท 4 books Books by Friedrich G. Helfferich Kinetics of multistep reactions 2004 Kinetics of homogeneous multistep reactions 2001 Migration and fate of pollutan Migration and fate of pollutants in soils and subsoils 1993 Ionenaustauscher 1962