S. Bethard, and D. Jurafsky. Proceedings of the 19th ACM international conference on Information and knowledge management, page 609--618. New York, NY, USA, ACM, (2010)
K. Kobs, T. Koopmann, A. Zehe, D. Fernes, P. Krop, and A. Hotho. Findings of the Association for Computational Linguistics: EMNLP 2020, page 878--883. Online, Association for Computational Linguistics, (November 2020)