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2017 IEEE 19th Conference on Business Informatics (CBI) > 1 > 398 - 407
IEEE Transactions on Engineering Management > 2017 > 64 > 1 > 16 - 28
IEEE Transactions on Engineering Management > 2013 > 60 > 3 > 483 - 495
IEEE Internet Computing > 2012 > 16 > 1 > 87 - 89
2011 Frontiers in Education Conference (FIE) > F2D-1 - F2D-3
2011 15th Panhellenic Conference on Informatics > 315 - 320