Song, K., Wang, K., Yu, H., Zhang, Y., Huang, Z., Luo, W., Duan, X. and Zhang, M. 2020. Alignment-Enhanced Transformer for Constraining NMT with Pre-Specified Translations. Proceedings of the AAAI Conference on Artificial Intelligence. 34, 05 (Apr. 2020), 8886-8893. DOI:https://doi.org/10.1609/aaai.v34i05.6418.