@InProceedings{andersen-EtAl:2013:BEA8,
  author    = {Andersen, {\O}istein E.  and  Yannakoudakis, Helen  and  Barker, Fiona  and  Parish, Tim},
  title     = {Developing and testing a self-assessment and tutoring system},
  booktitle = {Proceedings of the Eighth Workshop on Innovative Use of NLP for Building Educational Applications},
  month     = {June},
  year      = {2013},
  address   = {Atlanta, Georgia},
  publisher = {Association for Computational Linguistics},
  pages     = {32--41},
  url       = {http://www.aclweb.org/anthology/W13-1704}
}