@inproceedings{ijcai2016p170,
  title     = {Answering Metaqueries over Hi (OWL 2 QL) Ontologies},
  author    = {Lenzerini, Maurizio and Lepore, Lorenzo and Poggi, Antonella},
  booktitle = {Proceedings of the Twenty-Fifth International Joint Conference on
               Artificial Intelligence, {IJCAI-16}},
  publisher = {AAAI Press / International Joint Conferences on Artificial Intelligence},
  editor    = {Subbarao Kambhampati},
  pages     = {1174--1179},
  year      = {2016},
  month     = {7},
  url       = {https://ijcai.org/proceedings/2016/170},
}