@book { OstfriesischeInselkrimis,
    title = "Ostfriesische Inselkrimis",
    author = "Moa {Graven}",
    year = "2023",
    publisher = "Criminal-kick-Verlag",
    address = ", Deutschland",
    url = "https://tolino.openpublishing.com/document/1313017"
}