@InProceedings{collinsthompson-callan:2007:main,
  author    = {Collins-Thompson, Kevyn  and  Callan, Jamie},
  title     = {Automatic and Human Scoring of Word Definition Responses},
  booktitle = {Human Language Technologies 2007: The Conference of the North American Chapter of the Association for Computational Linguistics; Proceedings of the Main Conference},
  month     = {April},
  year      = {2007},
  address   = {Rochester, New York},
  publisher = {Association for Computational Linguistics},
  pages     = {476--483},
  url       = {http://www.aclweb.org/anthology/N/N07/N07-1060}
}