@book { DieAbenteuerderMweNimmersattEinNordseemrchen,
    title = "Die Abenteuer der Möwe Nimmersatt - Ein Nordseemärchen",
    author = "michael {müller}",
    year = "2023",
    publisher = "via tolino media",
    address = "München, Deutschland",
    url = "https://tolino.openpublishing.com/document/1387773"
}