Rules and Reasoning Third International Joint Conference, RuleML+RR 2019, Bolzano, Italy, September 16-19, 2019, Proceedings - Fodor, Paul; Fodor, Paul; Montali, Marco; Montali, Marco; Calvanese, Diego; Calvanese, Diego; Roman, Dumitru; Roman, Dumitru (Springer International Publishing : Imprint: Springer, 2019)