Editor-in-Chief at "Zeitschrift für Angewandte Mathematik und Mechanik" (ZAMM): http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%291521-4001
Member in Editorial Board of "Lecture Notes in Applied Mathematics and Mechanics".
Spokesperson of the GAMM Activity Group "Analysis partieller Differentialgleichungen"
The GAMM Activity Group (partly):