@book{Westerheide1985,
  author    = {Westerheide, Peter},
  title     = {Differential- und Integralrechnung (Analysis)},
  publisher = {Hanser-Verlag},
  address   = {M{\"u}nchen},
  isbn      = {3-446-13038-1},
  year      = {1985},
  language  = {de}
}
@book{Westerheide1987,
  author    = {Westerheide, Peter},
  title     = {Ranglistenberechnung per Computer},
  address   = {Hamburg},
  year      = {1987},
  language  = {mul}
}
@book{WesterheideGarus1985,
  author    = {Westerheide, Peter and Garus, Guntram},
  title     = {Differential- und Integralrechnung},
  edition   = {1. Aufl.},
  publisher = {Hanser},
  address   = {M{\"u}nchen [u.a.]},
  isbn      = {3-446-13038-1},
  pages     = {250 S. : graph. Darst.},
  year      = {1985},
  language  = {de}
}
@book{Wolf1999,
  author    = {Wolf, Juliane},
  title     = {Depositenvertr{\"a}ge, Einlagensicherung und die Vermeidung von Bank-Runs, zugleich Dissertation Universit{\"a}t M{\"u}nster},
  address   = {M{\"u}nster},
  year      = {1999},
  language  = {de}
}
@book{Oehlschlegel1998,
  author    = {{\"O}hlschlegel, Sonja},
  title     = {Erfassung und inhaltliche Analyse von Intergruppenkategorisierungen in der Kommunikation zwischen sozialen Gruppen},
  publisher = {LIT Verlag},
  address   = {M{\"u}nster},
  isbn      = {978-3-8258-3821-8},
  publisher      = {FH M{\"u}nster - University of Applied Sciences},
  pages     = {182},
  year      = {1998},
  language  = {de}
}
@book{OehlschlegelHaubrockHaubrock2017,
  author    = {{\"O}hlschlegel-Haubrock, Sonja and Haubrock, Alexander},
  title     = {Nachhaltige Personalentwicklung. Herausforderung und Chance},
  publisher = {Kohlhammer},
  address   = {Stuttgart},
  isbn      = {978-3-17-029274-1},
  year      = {2017},
  language  = {de}
}
@book{OehlschlegelHaubrockRachWolf2016,
  author    = {{\"O}hlschlegel-Haubrock, Sonja and Rach, Jutta and Wolf, Juliane},
  title     = {Von der F{\"u}hrungskraft zum Coach: Grundlagen - Umsetzung - Praxis},
  publisher = {Kohlhammer},
  address   = {Stuttgart},
  isbn      = {978-3-17-029210-9},
  pages     = {163},
  year      = {2016},
  language  = {de}
}