@inproceedings{'BosKleinLemonOka2003SIGDIAL',
   title     = {'DIPPER: Description and Formalisation of an Information-State Update Dialogue System Architecture'},
   author    = {Bos, Johan and Klein, Ewan and Lemon, Oliver and 'Oka', 'Tetsushi'},
   booktitle = {'4th SIGdial Workshop on Discourse and Dialogue'},
   address   = {'Sapporo, Japan'},
   pages     = {115--124},
   year      = {2003}
}