@inproceedings{Burke-etAl:2003:DIALOGUE,
  author = {Burke, Carl  and  Doran, Christy  and  Gertner, Abigail  and  Gregorowicz, Andy  and  Harper, Lisa  and  Korb, Joel  and  Loehr, Dan},
  title  = {Dialogue complexity with portability? Research directions for the Information State approach},
  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/W03-0705.pdf},
  year   = 2003,
  pages  = {13--15}