Business & Information Systems Engineering
Business & Information Systems Engineering > 2009 > 1 > 1 > 53-61
Business & Information Systems Engineering > 2009 > 1 > 1 > 37-45
Business & Information Systems Engineering > 2009 > 1 > 1 > 53-61
Business & Information Systems Engineering > 2009 > 1 > 1 > 37-45