@book { WchterdesDungeonsEinzelgngerBuch4LitRPGSerie,
    title = "Wächter des Dungeons (Einzelgänger Buch 4): LitRPG-Serie",
    author = "Alex {Kosh}",
    year = "2023",
    publisher = "Magic Dome Books",
    address = ", Deutschland",
    url = "https://tolino.openpublishing.com/document/1379349"
}