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IEEE Transactions on Engineering Management > 2012 > 59 > 3 > 348 - 363
IEEE Communications Surveys & Tutorials > 2012 > 14 > 2 > 514 - 537
IT Professional > 2012 > 14 > 6 > 4 - 5
IEEE Transactions on Engineering Management > 2012 > 59 > 3 > 348 - 363
IEEE Communications Surveys & Tutorials > 2012 > 14 > 2 > 514 - 537
IT Professional > 2012 > 14 > 6 > 4 - 5