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IEEE Transactions on Engineering Management > 2017 > 64 > 4 > 437 - 449
IEEE Internet Computing > 2014 > 18 > 1 > 56 - 64
IEEE Transactions on Engineering Management > 2017 > 64 > 4 > 437 - 449
IEEE Internet Computing > 2014 > 18 > 1 > 56 - 64