@InProceedings{lopez-EtAl:2007:ACL-ELP,
  author    = {L\'{o}pez, Beatriz  and  Hern\'{a}ndez, \'{A}lvaro  and  D\'{\i}az, David  and  Fern\'{a}ndez, Rub\'{e}n  and  Hern\'{a}ndez, Luis  and  Torre, Doroteo},
  title     = {Design and Validation of ECA Gestures to Improve Dialogue System Robustness},
  booktitle = {Proceedings of the Workshop on Embodied Language Processing},
  month     = {June},
  year      = {2007},
  address   = {Prague, Czech Republic},
  publisher = {Association for Computational Linguistics},
  pages     = {67--74},
  url       = {http://www.aclweb.org/anthology/W/W07/W07-1909}
}