@book { CheetahManorDasGeheimnisdesPanthers,
    title = "Cheetah Manor - Das Geheimnis des Panthers",
    author = "Melissa {David}",
    year = "2019",
    publisher = "via tolino media",
    address = "München, Deutschland",
    url = "https://tolino.openpublishing.com/document/995957"
}