Junyan Zhu Can Wang Xiaofei He Jiajun Bu Chun Chen Shujie Shang Mingcheng Qu Gang Lu Tag-oriented document summarization. 1195-1196 2009 WWW http://doi.acm.org/10.1145/1526709.1526925 conf/www/2009 db/conf/www/www2009.html#ZhuWHBCSQL09