@book { BetrieblicheSozialpolitikinDeutschland,
    title = "Betriebliche Sozialpolitik in Deutschland",
    author = "Peter {Schultz}",
    year = "2004",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832481001",
    url = "https://m.diplom.de/document/223325"
}