@InProceedings{gardent-EtAl:2013:SIGDIAL,
  author    = {Gardent, Claire  and  Lorenzo, Alejandra  and  Perez-Beltrachini, Laura  and  Rojas-Barahona, Lina},
  title     = {Weakly and Strongly Constrained Dialogues for Language Learning},
  booktitle = {Proceedings of the SIGDIAL 2013 Conference},
  month     = {August},
  year      = {2013},
  address   = {Metz, France},
  publisher = {Association for Computational Linguistics},
  pages     = {357--359},
  url       = {http://www.aclweb.org/anthology/W13-4056}
}