@inproceedings{Chai-etAl:2003:DIALOGUE,
  author = {Chai, Joyce Y.  and  Hong, Pengyu  and  Zhou, Michelle X.},
  title  = {Combining Semantic and Temporal Constraints for Multimodal Integration in Conversation Systems},
  booktitle = {Proceedings of the HLT-NAACL 2003 Workshop on Research Directions in Dialogue Processing},
  editor = {Alexander I. Rudnicky and Candace L. Sidner},
  url    = {http://www.aclweb.org/anthology/W03-0701.pdf},
  year   = 2003,
  pages  = {1--3}