@book { ZMstrenggeheimErsterRomanDasGeheimnisdesaltenProfessors,
    title = "ZM - streng geheim: Erster Roman: Das Geheimnis des alten Professors",
    author = "Marliese {Arold}",
    year = "2016",
    publisher = "dotbooks Verlag",
    address = "München, Deutschland",
    url = "https://m.dotbooks.de/document/343064"
}