Bonaventura Coppola Aldo Gangemi Alfio Massimiliano Gliozzo Davide Picca Valentina Presutti Frame Detection over the Semantic Web. 126-142 2009 ESWC http://dx.doi.org/10.1007/978-3-642-02121-3_13 conf/esws/2009 db/conf/esws/eswc2009.html#CoppolaGGPP09