@inproceedings{aharodnik-etal-2013-automatic, title = "Automatic Identification of Learners' Language Background Based on Their Writing in {C}zech", author = "Aharodnik, Katsiaryna and Chang, Marco and Feldman, Anna and Hana, Jirka", editor = "Mitkov, Ruslan and Park, Jong C.", booktitle = "Proceedings of the Sixth International Joint Conference on Natural Language Processing", month = oct, year = "2013", address = "Nagoya, Japan", publisher = "Asian Federation of Natural Language Processing", url = "https://aclanthology.org/I13-1200/", pages = "1428--1436" }