Michael Wietzorek
Decision of the Landgericht Köln, Case No. 22 O 410/03
7 December 2006
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Decision of the Kammergericht Berlin, Case No. 25 W 15/03
3 December 2003
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Decision of the Oberlandesgericht Köln, Case No. 16 W 35/02
6 October 2003
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