@book{Juchler2020,
  author    = {Juchler, Ingo},
  title     = {Die DDR im Jahr 1989},
  publisher = {Landeszentrale f{\"u}r politische Bildung Th{\"u}ringen},
  address   = {Erfurt},
  isbn      = {978-3-948643-07-2},
  pages     = {152},
  year      = {2020},
  language  = {de}
}
@book{Gronau2020,
  author    = {Gronau, Norbert},
  title     = {Knowledge Modeling and Description Language 3.0},
  publisher = {GITO},
  address   = {Berlin},
  isbn      = {978-3-95545-330-5},
  pages     = {75},
  year      = {2020},
  language  = {de}
}
@book{BalderjahnSpecht2020,
  author    = {Balderjahn, Ingo and Specht, G{\"u}nter},
  title     = {Einf{\"u}hrung in die Betriebswirtschaftslehre},
  volume    = {2020},
  edition   = {8., {\"u}berarbeitete Auflage},
  publisher = {Sch{\"a}ffer-P{\"o}schel Verlag},
  address   = {Stuttgart},
  isbn      = {978-3-7910-4523-8},
  pages     = {X, 300},
  year      = {2020},
  language  = {de}
}
@book{OPUS4-44463,
  title     = {EU's connectivity in times of Eurasian Dynamics},
  editor    = {Hummel, Detlev},
  publisher = {WeltTrends},
  address   = {Potsdam},
  isbn      = {978-3-947802-44-9},
  pages     = {268},
  year      = {2020},
  language  = {de}
}