Katragkou, E. [P:(DE-HGF)0] ; Zanis, P. [P:(DE-HGF)0] ; Tsikerdekis, A. [P:(DE-HGF)0] ; Kapsomenakis, J. [P:(DE-HGF)0] ; Melas, D. [P:(DE-HGF)0] ; Eskes, H. [P:(DE-HGF)0] ; Flemming, J. [P:(DE-HGF)0] ; Huijnen, V. [P:(DE-HGF)0] ; Inness, A. [P:(DE-HGF)0] ; Schultz, Martin [P:(DE-Juel1)6952] ; Stein, O. [P:(DE-Juel1)3709] ; Zerefos, C. S. [P:(DE-HGF)0]