@book { DerGlazialeFormenschatzderAlpen,
    title = "Der Glaziale Formenschatz der Alpen",
    author = "Felix {Bachofer} and David {Bregulla}",
    year = "2003",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783638218016",
    url = "https://www.hausarbeiten.de/document/17166"
}