IEEE Transactions on Knowledge and Data Engineering
IEEE Transactions on Knowledge and Data Engineering > 2008 > 20 > 6 > 809 - 824
IEEE Transactions on Knowledge and Data Engineering > 2008 > 20 > 8 > 1013 - 1027
IEEE Transactions on Knowledge and Data Engineering > 2010 > 22 > 8 > 1142 - 1157