@book { DerKalvarienberginFeldafing,
    title = "Der Kalvarienberg in Feldafing",
    author = "Daniel {Bernhard}",
    year = "2004",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832481315",
    url = "https://m.diplom.de/document/223356"
}