Aoying Zhou Weining Qian Xueqing Gong Minqi Zhou Sonnet: an efficient distributed content-based dissemination broker. 1094-1096 2007 conf/sigmod/2007 SIGMOD Conference http://doi.acm.org/10.1145/1247480.1247618 db/conf/sigmod/sigmod2007.html#ZhouQGZ07