@book { OperateLeasingvsFinanzierungsleasing,
    title = "Operate Leasing vs. Finanzierungsleasing",
    author = "Jens {Fischer}",
    year = "2014",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    url = "https://www.hausarbeiten.de/document/274876"
}