@book { EinHerzausEisundSchnee,
    title = "Ein Herz aus Eis und Schnee",
    author = "Karolyn {Ciseau}",
    year = "2023",
    publisher = "via tolino media",
    address = "München, Deutschland",
    url = "https://tolino.openpublishing.com/document/1430036"
}