@article{och-ney-2003-systematic, title = "A Systematic Comparison of Various Statistical Alignment Models", author = "Och, Franz Josef and Ney, Hermann", journal = "Computational Linguistics", volume = "29", number = "1", year = "2003", url = "https://preview.aclanthology.org/fix-sig-urls/J03-1002/", doi = "10.1162/089120103321337421", pages = "19--51" }