@phdthesis {PHD-198812-Novick,
   type = {Dissertation Defense},
   author = {David Graham Novick},
   title = {Control of Mixed-Initiative Discourse Through Meta-Locutionary Acts:  A Computational Model},
   school = {College of Arts and Sciences, University of Oregon},
   month = 12,
   year = 1988,
   note = {Available at \url{https://www.cs.uoregon.edu/Reports/PHD-198812-Novick.pdf}},
}