@Book{W18-05:2018,
  editor    = {Joel Tetreault  and  Jill Burstein  and  Ekaterina Kochmar  and  Claudia Leacock  and  Helen Yannakoudakis},
  title     = {Proceedings of the Thirteenth Workshop on Innovative Use of NLP for Building Educational Applications},
  month     = {June},
  year      = {2018},
  address   = {New Orleans, Louisiana},
  publisher = {Association for Computational Linguistics},
  url       = {http://www.aclweb.org/anthology/W18-05}
}