Dariusz Ceglarek Konstanty Haniewicz Wojciech Rutkowski Semantically Enhanced Intellectual Property Protection System - SEIPro2S. 449-459 2009 ICCCI http://dx.doi.org/10.1007/978-3-642-04441-0_39 conf/iccci/2009 db/conf/iccci/iccci2009.html#CeglarekHR09