Frerix, A. [P:(DE-Juel1)VDB38056] ; Geilenkirchen, P. [P:(DE-Juel1)VDB61421] ; Müller, M. [P:(DE-HGF)0] ; Kula, M.-R. [P:(DE-HGF)0] ; Hubbuch, J. [P:(DE-Juel1)VDB21816]