@book { ArbeitsmarktUSADeutschland,
    title = "Arbeitsmarkt: USA - Deutschland",
    author = "Norman {Schätz}",
    year = "2001",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783640012763",
    url = "https://www.hausarbeiten.de/document/102896"
}