@inproceedings{de-mori-bechet-2003-conceptual,
    title = "Conceptual Language Models for Dialog Systems",
    author = "De Mori, Renato  and
      B{\'e}chet, Frederic",
    booktitle = "Proceedings of the {HLT}-{NAACL} 2003 Workshop on Research Directions in Dialogue Processing",
    year = "2003",
    url = "https://preview.aclanthology.org/iwcs-25-ingestion/W03-0702/",
    pages = "4--6"
}