TY - CHAP A1 - Wagner, Gerd A1 - Giurca, Adrian A1 - Diaconescu, Ion-Mircea A1 - Antoniou, Grigoris A1 - Analyti, Anastasia A1 - Damasio, Carlos Viegas T1 - Reasoning on the Web with Open and Closed PRedicates Y1 - 2008 ER -