@techreport{Henschel92-merging,
  author	= {Henschel, Renate},
  year		= {1992},
  title		= {A proposal for merging the English and German Upper Models},
  address	= {Darmstadt, Germany},
  institution	= {GMD/Institut f{\"u}r Integrierte Publikations- und Informationssysteme, Darmstadt, West Germany}
}