@InProceedings{zhang-litman:2015:bea,
  author    = {Zhang, Fan  and  Litman, Diane},
  title     = {Annotation and Classification of Argumentative Writing Revisions},
  booktitle = {Proceedings of the Tenth Workshop on Innovative Use of NLP for Building Educational Applications},
  month     = {June},
  year      = {2015},
  address   = {Denver, Colorado},
  publisher = {Association for Computational Linguistics},
  pages     = {133--143},
  url       = {http://www.aclweb.org/anthology/W15-0616}
}