Yang Lu Jiakui Zhao Lijun Chen 0002 Bin Cui Dongqing Yang Effective Skyline Cardinality Estimation on Data Streams. 241-254 2008 DEXA http://dx.doi.org/10.1007/978-3-540-85654-2_25 conf/dexa/2008 db/conf/dexa/dexa2008.html#LuZCCY08