@inproceedings{ijcai2018p257, title = {Horn-Rewritability vs PTime Query Evaluation in Ontology-Mediated Querying}, author = {Andre Hernich and Carsten Lutz and Fabio Papacchini and Frank Wolter}, booktitle = {Proceedings of the Twenty-Seventh International Joint Conference on Artificial Intelligence, {IJCAI-18}}, publisher = {International Joint Conferences on Artificial Intelligence Organization}, pages = {1861--1867}, year = {2018}, month = {7}, doi = {10.24963/ijcai.2018/257}, url = {https://doi.org/10.24963/ijcai.2018/257}, }