Erik Behrends Oliver Fritzen Tobias Knabke Wolfgang May Franz Schenk Rule-Based Active Domain Brokering for the Semantic Web. 259-268 2007 conf/rr/2007 RR http://dx.doi.org/10.1007/978-3-540-72982-2_20 db/conf/rr/rr2007.html#BehrendsFKMS07