Vereecken, H. [P:(DE-Juel1)129549] ; Burauel, P. [P:(DE-Juel1)VDB202] ; Groeneweg, J. [P:(DE-Juel1)129462] ; Klumpp, E. [P:(DE-Juel1)129484] ; Mittelstaedt, W. [P:(DE-Juel1)VDB1076] ; Narres, H.-D. [P:(DE-Juel1)VDB1124] ; Pütz, T. [P:(DE-Juel1)VDB2346] ; van der Kruk, J. [P:(DE-Juel1)129561] ; Vanderborght, J. [P:(DE-Juel1)129548] ; Wendland, F. [P:(DE-Juel1)VDB4997]