Junbo Chen Bo Zhou Lu Chen Xinyu Wang Yiqun Ding Finding Frequent Closed Itemsets in Sliding Window in Linear Time. 2406-2418 2008 91-D IEICE Transactions 10 http://dx.doi.org/10.1093/ietisy/e91-d.10.2406 db/journals/ieicet/ieicet91d.html#ChenZCWD08