Almowafy, M. [P:(DE-HGF)0] ; Baumgarten, G. [P:(DE-HGF)0] ; Baumgarten, K. [P:(DE-HGF)0] ; Ern, Manfred [P:(DE-Juel1)129117] ; Gerding, M. [P:(DE-HGF)0] ; Lübken, F.-J. [P:(DE-HGF)0] ; Strelnikova, I. [P:(DE-HGF)0]