S. Bergsma, M. Post, и D. Yarowsky. Proceedings of the 2012 Conference of the North American Chapter of the Association for Computational Linguistics: Human Language Technologies, стр. 327--337. Association for Computational Linguistics, (2012)
A. Zehe, M. Becker, F. Jannidis, и A. Hotho. Joint German/Austrian Conference on Artificial Intelligence (Künstliche Intelligenz), стр. 387--394. Springer, (2017)