@techreport{covington1994gep,
  added-at = {2009-03-03T18:17:20.000+0100},
  author = {Covington, Michael A.},
  biburl = {http://www.bibsonomy.org/bibtex/26bc9bb8718cb309bbffb3ae720d3a221/unhammer},
  institution = {Artificial Intelligence Center, The University of Georgia},
  interhash = {cff80ac73eacb977eff05284de7dfa40},
  intrahash = {6bc9bb8718cb309bbffb3ae720d3a221},
  keywords = {DCG XLE grammar prolog toread unification},
  number = {AI-1994-06},
  timestamp = {2009-03-03T18:17:20.000+0100},
  title = {{GULP} 3.1: An Extension of Prolog for Unification-Based Grammar},
  url = {http://www.ai.uga.edu/mc/gulp/},
  year = 1994
}