@inproceedings{Zhang_2020,
title={Improving Massively Multilingual Neural Machine Translation and Zero-Shot Translation},
url={http://dx.doi.org/10.18653/v1/2020.acl-main.148},
DOI={10.18653/v1/2020.acl-main.148},
booktitle={Proceedings of the 58th Annual Meeting of the Association for Computational Linguistics},
publisher={Association for Computational Linguistics},
author={Zhang,
Biao and Williams,
Philip and Titov,
Ivan and Sennrich,
Rico},
year={2020} }