@inproceedings{DBLP:conf/ijcai/BourhisMP13,
  title = "The Impact of Disjunction on Query Answering Under Guarded-Based Existential Rules",
  author = "Pierre Bourhis and Michael Morak and Andreas Pieris",
  year = "2013",
  booktitle = "{IJCAI} 2013, Proceedings of the 23rd International Joint Conference on Artificial Intelligence, Beijing, China, August 3-9, 2013",
  editor = "Francesca Rossi",
  isbn = "978-1-57735-633-2",
  publisher = "{IJCAI/AAAI}",
  url = "http://www.aaai.org/ocs/index.php/IJCAI/IJCAI13/paper/view/6504",
}