@inproceedings{tran-etal-2021-covrelex, title = "{C}ov{R}elex: A {COVID}-19 Retrieval System with Relation Extraction", author = "Tran, Vu and Tran, Van-Hien and Nguyen, Phuong and Nguyen, Chau and Satoh, Ken and Matsumoto, Yuji and Nguyen, Minh", editor = "Gkatzia, Dimitra and Seddah, Djam{\'e}", booktitle = "Proceedings of the 16th Conference of the European Chapter of the Association for Computational Linguistics: System Demonstrations", month = apr, year = "2021", address = "Online", publisher = "Association for Computational Linguistics", url = "https://preview.aclanthology.org/fix-sig-urls/2021.eacl-demos.4/", doi = "10.18653/v1/2021.eacl-demos.4", pages = "24--31" }