Nabielek, H. [P:(DE-Juel1)VDB3939] ; Blum, L. [P:(DE-Juel1)129828] ; Buchkremer, H. P. [P:(DE-Juel1)129594] ; Haanappel, V. A. C. [P:(DE-Juel1)VDB20698] ; deHaart, L.G.J. de [P:(DE-Juel1)VDB103506] ; Quadakkers, W. J. [P:(DE-Juel1)129782] ; Steinberger-Wilckens, R. [P:(DE-Juel1)VDB9342] ; Steinbrech, R. W. [P:(DE-Juel1)VDB1573] ; Reisgen, U. [P:(DE-Juel1)VDB3383] ; Tietz, F. [P:(DE-Juel1)129667]