@book{Balz1994,
  author    = {Balz, Ulrich},
  title     = {Betriebliche Altersversorgung},
  volume    = {1607},
  edition   = {1. Aufl.},
  publisher = {Lang},
  address   = {Frankfurt am Main [u.a.]},
  pages     = {XXXV, 220 S.},
  year      = {1994},
  language  = {mul}
}
@book{LittkemannHoltupSchulte2009,
  author    = {Littkemann, J. and Holtup, M. and Schulte, K.},
  title     = {Buchf{\"u}hrung: Grundlagen - {\"U}bungen - Klausurvorbereitung},
  edition   = {4. Aufl.},
  publisher = {Gabler},
  address   = {Wiesbaden},
  isbn      = {3834919144},
  year      = {2009},
  language  = {mul}
}
@book{LittkemannHoltupSchulte2008,
  author    = {Littkemann, J. and Holtup, M. and Schulte, K.},
  title     = {Buchf{\"u}hrung: Grundlagen - {\"U}bungen - Klausurvorbereitung},
  edition   = {3. Aufl.},
  publisher = {Gabler},
  address   = {Wiesbaden},
  isbn      = {3834908576},
  year      = {2008},
  language  = {mul}
}
@book{LittkemannHoltupSchulte2007,
  author    = {Littkemann, J. and Holtup, M. and Schulte, K.},
  title     = {Buchf{\"u}hrung: Grundlagen - {\"U}bungen - Klausurvorbereitung},
  edition   = {2. Aufl.},
  publisher = {Gabler},
  address   = {Wiesbaden},
  isbn      = {3834905585},
  year      = {2007},
  language  = {mul}
}
@book{LittkemannHoltupSchulte2006,
  author    = {Littkemann, J. and Holtup, M. and Schulte, K.},
  title     = {Buchf{\"u}hrung: Grundlagen - {\"U}bungen - Klausurvorbereitung},
  publisher = {Gabler},
  address   = {Wiesbaden},
  isbn      = {3409127070},
  year      = {2006},
  language  = {mul}
}
@book{LittkemannHoltupSchulte2012,
  author    = {Littkemann, J. and Holtup, M. and Schulte, K.},
  title     = {Buchf{\"u}hrung: Grundlagen - {\"U}bungen - Klausurvorbereitung},
  edition   = {5. Aufl.},
  publisher = {Gabler},
  address   = {Wiesbaden},
  isbn      = {978-3834934178},
  year      = {2012},
  language  = {mul}
}
@book{Davey2015,
  author    = {Davey, Todd},
  title     = {Entrepreneurship at Universities},
  edition   = {1. Aufl},
  publisher = {University-Industry Innovation Network Publishing},
  address   = {Amsterdam},
  isbn      = {978-94-91901-13-3},
  year      = {2015},
  language  = {mul}
}
@book{Pooten1999,
  author    = {Pooten, Holger},
  title     = {Grunds{\"a}tze ordnungsm{\"a}ßiger Unternehmensbewertung},
  publisher = {Fachbibliothek Verlag},
  address   = {B{\"u}ren},
  year      = {1999},
  language  = {mul}
}
@book{Schengber2004,
  author    = {Schengber, Ralf},
  title     = {Handynutzungsverhalten in Deutschland - Eine Studie},
  address   = {M{\"u}nster},
  year      = {2004},
  language  = {mul}
}
@book{vonKeitzHeyd2007,
  author    = {von Keitz, Isabel and Heyd, Reinhard},
  title     = {IFRS-Management},
  address   = {M{\"u}nchen},
  year      = {2007},
  language  = {mul}
}