Author: Professor Dr. Dr. h.c. Hans-Peter Blume, Professor Dr. Gerhard W. Brümmer, Professor Dr. Rainer Horn, Professor Dr. Ellen Kandeler, Professor Dr. Ingrid Kögel-Knabner, Professor Dr. Ruben Kretzschmar, Professor Dr. Karl Stahr, Professor Dr. Dr. Berndt-Michael Wilke, Professor Dr. Sören Thiele-Bruhn, Priv.-Doz. Dr. Gerhard Welp (auth.)