@Inproceedings{Collins:1997,
  author = {Collins, Michael and Brooks, James},
  title  = {Prepositional Phrase Attachment through a Backed-Off Model},

  year   = {forthcoming},
  number = {},
  url    = {},

  const  = {\ text}
}
@Unpublished{Volk:resprop,
  author = {Volk, Martin},
  title  = {Resolving PP-attachment ambiguities in German by using cooccurrence values},

  year   = {1998},
  number = {},
  url    = {},

  const  = {\ text}
}
@Unpublished{Langer:1997,
  author = {Langer, Hagen and Mehl, Stephan and Volk, Martin},
  title  = {Hybride NLP-Systeme und das Problem der PP-Anbindung},

  year   = {1997},
  number = {},
  url    = {},

  const  = {\ text}
}
@Incollection{Franz:1996,
  author = {Franz, Alexander},
  title  = {Learning PP Attachment from Corpus Statistics},

  year   = {1996},
  number = {},
  url    = {},

  const  = {\ text}
}
@Mastersthesis{Shimazawa:1995,
  author = {Shimazawa, Mineko},
  title  = {Analysis of Prepositional Phrase Attachment to NP and VP for Automatic Parsing},

  year   = {1995},
  number = {},
  url    = {},

  const  = {\ text}
}
@Inproceedings{Brill:1994,
  author = {Brill, Eric and Resnik, Philip},
  title  = {A rule-based approach to prepositional phrase attachment disambiguation},

  year   = {1994},
  number = {},
  url    = {ftp://ftp.cs.jhu.edu/pub/brill/Papers/pp-attachment.ps},

  const  = {\ text}
}