@article{Flycht-Eriksson99,
  author	= {Flycht-Eriksson, Annika},
  title		= {A survey of knowledge sources in dialogue systems},
  journal	= {ETAI: News Journal on Intelligent User Interfaces},
  year		= {1999},
  URL		= {http://www.dfki.de/etai/SpecialIssues/Dia99/flycht/flycht.html},
  urlpage	= {http://www.dfki.de/etai/SpecialIssues/Dia99/flycht/flycht.html},
  note		= {Special Issue on Intelligent Dialogue Systems edited by Jan Alexandersson, Lars Ahrenberg, Kristiina Jokinen and Arne J{\"o}nsson},
  volume	= {10}
}