IEEE Transactions on Knowledge and Data Engineering
IEEE Transactions on Knowledge and Data Engineering > 2011 > 23 > 1 > 139 - 154
IEEE Transactions on Knowledge and Data Engineering > 2011 > 23 > 2 > 248 - 265
IEEE Transactions on Knowledge and Data Engineering > 2011 > 23 > 6 > 914 - 927
IEEE Transactions on Knowledge and Data Engineering > 2011 > 23 > 11 > 1619 - 1634