Business & Information Systems Engineering
Business & Information Systems Engineering > 2009 > 1 > 6 > 411-428
Business & Information Systems Engineering > 2009 > 1 > 6 > 452-462
Business & Information Systems Engineering > 2009 > 1 > 6 > 468-474
Business & Information Systems Engineering > 2009 > 1 > 6 > 405-407
Business & Information Systems Engineering > 2009 > 1 > 6 > 408-410
Business & Information Systems Engineering > 2009 > 1 > 6 > 438-451