@techreport{Sidner:79,
	title = {Towards a Computational Theory of Definite Anaphora Comprehension in
  {E}nglish Discourse},
	address = {Cambridge, MA},
	author = {Candace Sidner},
	institution = {MIT Artificial Intelligence Laboratory},
	key = {Sidner 1979},
	month = {June},
	number = {537},
	year = {1979},
	biburl = {http://www.bibsonomy.org/bibtex/2b5a1c07506966d2c2ef3b7530a4ffb6f/nlp},
	keywords = {2000 book nlp }
}