Simeng Sun Maha Elbayad Anna Y. Sun James Cross 0003 Efficiently Upgrading Multilingual Machine Translation Models to Support More Languages. 1505-1519 2023 EACL https://doi.org/10.18653/v1/2023.eacl-main.111 https://aclanthology.org/2023.eacl-main.111 conf/eacl/2023 db/conf/eacl/eacl2023.html#SunESC23