IEEE Transactions on Knowledge and Data Engineering
IEEE Transactions on Knowledge and Data Engineering > 2007 > 19 > 7 > 950 - 961
IEEE Transactions on Knowledge and Data Engineering > 2009 > 21 > 4 > 465 - 478
IEEE Transactions on Knowledge and Data Engineering > 2009 > 21 > 4 > 568 - 581
IEEE Transactions on Knowledge and Data Engineering > 2010 > 22 > 5 > 665 - 681