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IEEE Transactions on Engineering Management > 2014 > 61 > 4 > 623 - 632
IT Professional > 2012 > 14 > 4 > 24 - 30
IEEE Transactions on Engineering Management > 2014 > 61 > 4 > 623 - 632
IT Professional > 2012 > 14 > 4 > 24 - 30