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IEEE Transactions on Knowledge and Data Engineering > 2012 > 24 > 4 > 692 - 706
IEEE Transactions on Services Computing > 2009 > 2 > 2 > 152 - 166
IEEE Transactions on Knowledge and Data Engineering > 2012 > 24 > 4 > 692 - 706
IEEE Transactions on Services Computing > 2009 > 2 > 2 > 152 - 166