@Book{W14-18:2014,
  editor    = {Joel Tetreault  and  Jill Burstein  and  Claudia Leacock},
  title     = {Proceedings of the Ninth Workshop on Innovative Use of NLP for Building Educational Applications},
  month     = {June},
  year      = {2014},
  address   = {Baltimore, Maryland},
  publisher = {Association for Computational Linguistics},
  url       = {http://www.aclweb.org/anthology/W/W14/W14-18}
}