@book { ExklusiontrotzArbeit,
    title = "Exklusion trotz Arbeit? ",
    author = "Christoph {Sprich}",
    year = "2009",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783640333868",
    url = "https://www.hausarbeiten.de/document/127047"
}