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