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WIRTSCHAFTSINFORMATIK > 2012 > 54 > 3 > 135-151
Business & Information Systems Engineering > 2012 > 4 > 3 > 137-151
WIRTSCHAFTSINFORMATIK > 2012 > 54 > 3 > 135-151
Business & Information Systems Engineering > 2012 > 4 > 3 > 137-151