Idiap NMT System for WAT 2019 Multi-Modal Translation Task. In: Proceedings of the 2019 Conference on Empirical Methods in Natural Language Processing and the 9th International Joint Conference on Natural Language Processing (EMNLP-IJCNLP), pp. 175-180, Association for Computational Linguistics, Stroudsburg, PA, USA, ISBN 978-1-950737-90-1 (pdf, bibtex)