@InProceedings{kotani-EtAl:2011:IJCNLP-2011,
  author    = {Kotani, Katsunori  and  Yoshimi, Takehiko  and  Nanjo, Hiroaki  and  Isahara, Hitoshi},
  title     = {Compiling Learner Corpus Data of Linguistic Output and Language Processing in Speaking, Listening, Writing, and Reading},
  booktitle = {Proceedings of 5th International Joint Conference on Natural Language Processing},
  month     = {November},
  year      = {2011},
  address   = {Chiang Mai, Thailand},
  publisher = {Asian Federation of Natural Language Processing},
  pages     = {1418--1422},
  url       = {http://www.aclweb.org/anthology/I11-1165}
}