@book { ZumGlckOstseestrand,
    title = "Zum Glück Ostseestrand",
    author = "Frida Luise {Sommerkorn}",
    year = "2022",
    publisher = "via tolino media",
    address = "München, Deutschland",
    url = "https://tolino.openpublishing.com/document/1277711"
}