@inproceedings{DBLP:conf/datalog/CaliGLP10, title = "Datalog+⁄−: A Family of Languages for Ontology Querying", author = "Andrea Cal\`{\i} and Georg Gottlob and Thomas Lukasiewicz and Andreas Pieris", year = "2011", booktitle = "Datalog Reloaded - 1st International Workshop, Datalog 2010, Oxford, UK, March 16-19, 2010. Revised Selected Papers", editor = "Oege de Moor and Georg Gottlob and Tim Furche and Andrew Jon Sellers", isbn = "978-3-642-24205-2", pages = "351-368", publisher = "Springer", series = "Lecture Notes in Computer Science", url = "http://dx.doi.org/10.1007/978-3-642-24206-9_20", volume = "6702", }