@InProceedings{lee-lee:2009:Short,
  author    = {Lee, Sungjin  and  Lee, Gary Geunbae},
  title     = {Realistic Grammar Error Simulation using Markov Logic},
  booktitle = {Proceedings of the ACL-IJCNLP 2009 Conference Short Papers},
  month     = {August},
  year      = {2009},
  address   = {Suntec, Singapore},
  publisher = {Association for Computational Linguistics},
  pages     = {81--84},
  url       = {http://www.aclweb.org/anthology/P/P09/P09-2021}
}