@phdthesis{Ndiaye98-Diss,
  author	= {Ndiaye, Alassane},
  year		= {1998},
  title		= {Rollen{\"u}bernahme als Benutzermodellierungsmethode: Globale Antizipation in einem transmutierbaren Dialogsystem [Role Taking As a Method of User Modeling: Global Anticipation in a Transmutable Dialog System]},
  school	= {Department of Computer Science, Saarland University, Germany},
  note		= {Available from http://dfki.de/$\sim$jameson/abs/Ndiaye98Diss.html}
}