@inproceedings{valverde-ibanez-ohtani-2014-annotating,
    title = "Annotating Article Errors in {S}panish Learner Texts: Design and Evaluation of an Annotation Scheme",
    author = "Valverde Iba{\~n}ez, M. Pilar  and
      Ohtani, Akira",
    booktitle = "Proceedings of the 28th Pacific Asia Conference on Language, Information and Computing",
    month = dec,
    year = "2014",
    address = "Phuket,Thailand",
    publisher = "Department of Linguistics, Chulalongkorn University",
    url = "https://preview.aclanthology.org/landing_page/Y14-1029/",
    pages = "234--243"
}