@book { WertvolleTippszurartgerechtenHaltungvonFarbratten,
    title = "Wertvolle Tipps zur artgerechten Haltung von Farbratten.",
    author = "Stefan {Leinauer}",
    year = "2021",
    publisher = "via tolino media",
    address = "München, Deutschland",
    url = "https://tolino.openpublishing.com/document/1008258"
}