@article{graehl-etal-2008-training,
    title = "Training Tree Transducers",
    author = "Graehl, Jonathan  and
      Knight, Kevin  and
      May, Jonathan",
    journal = "Computational Linguistics",
    volume = "34",
    number = "3",
    year = "2008",
    url = "https://preview.aclanthology.org/jlcl-multiple-ingestion/J08-3004/",
    doi = "10.1162/coli.2008.07-051-R2-03-57",
    pages = "391--427"
}