IEEE Transactions on Knowledge and Data Engineering
IEEE Transactions on Knowledge and Data Engineering > 2006 > 18 > 6 > 721 - 737
IEEE Transactions on Knowledge and Data Engineering > 2009 > 21 > 8 > 1118 - 1132
IEEE Transactions on Knowledge and Data Engineering > 2006 > 18 > 6 > 721 - 737
IEEE Transactions on Knowledge and Data Engineering > 2009 > 21 > 8 > 1118 - 1132