@inproceedings{foster-etal-ijcai2009,
    author = {Mary Ellen Foster and Manuel Giuliani and Amy Isard and Colin Matheson
      and Jon Oberlander and Alois Knoll},
    title = {Evaluating Description and Reference Strategies in a Cooperative Human-Robot
        Dialogue System},
    booktitle = {Proceedings of the Twenty-first International Joint Conference on Artificial
        Intelligence ({IJCAI}-09)}, 
    address = {Pasadena, California},
    year = 2009,
    month = jul,
    url = {http://ijcai.org/papers09/Papers/IJCAI09-302.pdf}
}