%0 Book Section %A Borgo, Stefano %A Porello, Daniele %A Troquard, Nicolas %B Formal Ontology in Information Systems - Proceedings of the Eighth International Conference, \\textbraceleftFOIS\\textbraceright 2014, September, 22-25, 2014, Rio de Janeiro, Brazil\\textbraceright %D 2014 %E Garbacz, Pawel %E Kutz, Oliver %P 23--36 %T Logical operators for ontological modeling