@techreport{Habel-etal77,
  author	= {Habel, C. and Schmit, A. and Schweppe, H.},
  year		= {1977},
  title		= {On Automatic Paraphrasing of Natural Language Expressions},
  number	= {3//17},
  note		= {Semantic Network Project.},
  address	= {Berlin},
  institution	= {Technische Universiteit}
}