B. Heinzerling, and K. Inui. Proceedings of the 16th Conference of the European Chapter of the Association for Computational Linguistics: Main Volume, page 1772--1791. Online, Association for Computational Linguistics, (April 2021)
P. Xia, S. Wu, and B. Van Durme. Proceedings of the 2020 Conference on Empirical Methods in Natural Language Processing (EMNLP), page 7516--7533. Association for Computational Linguistics, (November 2020)