IEEE Transactions on Knowledge and Data Engineering
IEEE Transactions on Knowledge and Data Engineering > 2009 > 21 > 2 > 206 - 219
IEEE Transactions on Knowledge and Data Engineering > 2009 > 21 > 11 > 1643 - 1647
IEEE Transactions on Knowledge and Data Engineering > 2010 > 22 > 12 > 1709 - 1723
IEEE Transactions on Knowledge and Data Engineering > 2011 > 23 > 2 > 297 - 306