@inproceedings{ijcai2017p164, title = {Ontology-Mediated Querying with the Description Logic EL: Trichotomy and Linear Datalog Rewritability}, author = {Lutz, Carsten and Sabellek, Leif}, booktitle = {Proceedings of the Twenty-Sixth International Joint Conference on Artificial Intelligence, {IJCAI-17}}, publisher = {International Joint Conferences on Artificial Intelligence Organization}, editor = {Carles Sierra}, pages = {1181--1187}, year = {2017}, month = {8}, note = {Main track}, doi = {10.24963/ijcai.2017/164}, url = {https://doi.org/10.24963/ijcai.2017/164}, }