@phdthesis{Norvig-thesis,
title = {A Unified Theory of Inference for Text Understanding},
address = {Berkeley, CA},
author = {Peter Norvig},
note = {Available as University of California at Berkeley Computer Science
Division Tech. rep. \#87/339},
school = {University of California},
year = {1987},
keywords = {2000 book nlp }
}
::