Blömers, Ch. [P:(DE-Juel1)VDB98880] ; Lepsa, M. [P:(DE-Juel1)VDB98879] ; Lenk, S. [P:(DE-Juel1)128602] ; Lüth, H. [P:(DE-Juel1)VDB975] ; Schäpers, Th. [P:(DE-Juel1)128634] ; Grützmacher, D. [P:(DE-Juel1)125588]