"Issue-Based Dialogue Management" by Larsson, Staffan. Göteborg University, Department of Linguistics. Göteborg June 2002.

http://www.ling.gu.se/~sl/Thesis/thesis.

"Spoken Dialogue Technology: toward the conversational user interface". by McTear, Michael. Springer Verlag: London. 2004.

http://www.ling.gu.se/~sl/Thesis/thesis.pdf

A Dialogue model is a system that simulates the behavior of dialogue participants. This includes formal modals that instantiate linguistic theories of dialogue interaction and statistical models of dialogue behaviors.