@inproceedings{hirschmann-etal-2016-makes, title = "What Makes Word-level Neural Machine Translation Hard: A Case Study on {E}nglish-{G}erman Translation", author = {Hirschmann, Fabian and Nam, Jinseok and F{\"u}rnkranz, Johannes}, editor = "Matsumoto, Yuji and Prasad, Rashmi", booktitle = "Proceedings of {COLING} 2016, the 26th International Conference on Computational Linguistics: Technical Papers", month = dec, year = "2016", address = "Osaka, Japan", publisher = "The COLING 2016 Organizing Committee", url = "https://aclanthology.org/C16-1301/", pages = "3199--3208" }