@InProceedings{olney-cade-williams:2011:EduApp,
  author    = {Olney, Andrew  and  Cade, Whitney  and  Williams, Claire},
  title     = {Generating Concept Map Exercises from Textbooks},
  booktitle = {Proceedings of the Sixth Workshop on Innovative Use of NLP for Building Educational Applications},
  month     = {June},
  year      = {2011},
  address   = {Portland, Oregon},
  publisher = {Association for Computational Linguistics},
  pages     = {111--119},
  url       = {http://www.aclweb.org/anthology/W11-1414}
}