@phdthesis{richter_00,
  author	= {Richter, Frank},
  title		= {A Mathematical Formalism for Linguistic Theories with an Application in Head-Driven Phrase Structure Grammar},
  type		= {Phil. Dissertation},
  school	= {Eberhard-Karls-Universität Tübingen},
  year		= {2000},
  URL		= {http://www.sfs.uni-tuebingen.de/hpsg/archive/bibliography/papers/richter_dissertation.ps},
  urlzip	= {http://www.sfs.uni-tuebingen.de/hpsg/archive/bibliography/papers/richter_dissertation.ps.gz},
  urlpage	= {http://www.sfs.uni-tuebingen.de/~fr/cards/dissertation.html},
  homepage	= {http://www.sfs.uni-tuebingen.de/~fr/}
}