@inproceedings{ijcai1993p223,
  title     = {Rule-Structured Facial Animation System},
  author    = {Pelachaud, Catherine and Viaud, Marie-Luce and Yahia, Hussein M.},
  booktitle = {Proceedings of the Thirteenth International Joint Conference on
               Artificial Intelligence, {IJCAI-93}},
  publisher = {International Joint Conferences on Artificial Intelligence},
  editor    = {Ruzena Bajcsy},
  pages     = {1610--1616},
  year      = {1993},
  note      = {Robotics and Vision},
  url       = {https://ijcai.org/proceedings/1993/223},
}