Publication in BibTeX Format

@TECHREPORT{AICPub545:1987,
  AUTHOR={Pereira, Fernando C. N.},
  TITLE={Grammars and Logics Of Partial Information},
  ADDRESS={333 Ravenswood Ave., Menlo Park, CA 94025},
  INSTITUTION={AI Center, SRI International},
  MONTH={Apr},
  NUMBER={420},
  YEAR={1987},
  KEYWORDS={Natural Language!Unification grammar, Logic Programming},
  ABSTRACT={This paper is an informal survey of models of grammatical categories
     in unification-based formalisms from computational linguistics and their relationship
     to current logic programming concepts. The basic notion of partiality in the
     informational content of grammatical categories is introduced, and specific
     automata-theoretic, denotational and logical models of partial information
     are outlined. The expression of disjunction, negation, inheritance and indeterminate
     constraints in categories is also discussed.}
}