Xin Li Jun Yan Zhi-Hong Deng Lei Ji Weiguo Fan Benyu Zhang Zheng Chen A novel clustering-based RSS aggregator. 1309-1310 2007 conf/www/2007 WWW http://doi.acm.org/10.1145/1242572.1242824 db/conf/www/www2007.html#LiYDJFZC07