Wlodzimierz Drabent Thomas Eiter Giovambattista Ianni Thomas Krennwallner Thomas Lukasiewicz Jan Maluszynski Hybrid Reasoning with Rules and Ontologies. 1-49 2009 REWERSE http://dx.doi.org/10.1007/978-3-642-04581-3_1 series/lncs/5500 db/series/lncs/lncs5500.html#DrabentEIKLM09