@book { GlaubensflammedesOsterfeuers,
    title = "Glaubensflamme des Osterfeuers",
    author = "Rega {Kerner}",
    year = "2019",
    publisher = "via tolino media",
    address = "München, Deutschland",
    url = "https://tolino.openpublishing.com/document/1448929"
}