IEEE Transactions on Knowledge and Data Engineering
IEEE Transactions on Knowledge and Data Engineering > 2009 > 21 > 5 > 638 - 651
IEEE Transactions on Knowledge and Data Engineering > 2009 > 21 > 6 > 840 - 853
IEEE Transactions on Knowledge and Data Engineering > 2009 > 21 > 5 > 638 - 651
IEEE Transactions on Knowledge and Data Engineering > 2009 > 21 > 6 > 840 - 853