@inproceedings{oai:waseda.repo.nii.ac.jp:00029500,
 author = {Ibanez, Maria del Pilar Valverde and Ohtani, Akira},
 book = {Proceedings of the 28th Pacific Asia Conference on Language, Information and Computation},
 month = {},
 pages = {234--243},
 publisher = {Department of Linguistics, Faculty of Arts, Chulalongkorn University},
 title = {Annotating article errors in Spanish learner texts: design and evaluation of an annotation scheme},
 year = {2014}
}