@book { HitlersGeldflscher,
    title = "Hitlers Geldfälscher",
    subtitle = "Wie die Nazis planten, das internationale Währungssystem auszuhebeln",
    author = "Lawrence {Malkin}",
    year = "2014",
    publisher = "hey! publishing",
    address = "München, Deutschland",
    url = "https://www.heypublishing.com/document/272450"
}