@InProceedings{antonsen-EtAl:2009:NODALIDA,
  author    = {Antonsen, Lene  and  Huhmarniemi, Saara  and  Trosterud, Trond},
  title     = {Interactive pedagogical programs based on constraint grammar},
  booktitle = {Proceedings of the 17th Nordic Conference of Computational Linguistics (NODALIDA 2009)},
  month     = {May},
  year      = {2009},
  address   = {Odense, Denmark},
  publisher = {Northern European Association for Language Technology (NEALT)},
  pages     = {10--17},
  url       = {http://www.aclweb.org/anthology/W09-4604}
}