Please use this identifier to cite or link to this item: https://hdl.handle.net/10419/58142 
Year of Publication: 
2007
Series/Report no.: 
ICB-Research Report No. 9
Publisher: 
Universität Duisburg-Essen, Institut für Informatik und Wirtschaftsinformatik (ICB), Essen
Document Type: 
Research Report

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