@book { DasKlimaderAlpen,
    title = "Das Klima der Alpen",
    author = "Steffen {Kruppa}",
    year = "2007",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783638626743",
    url = "https://www.hausarbeiten.de/document/70898"
}