@book { DieIntegrationvonLangzeitarbeitsloseninDeutschland,
    title = "Die Integration von Langzeitarbeitslosen in Deutschland",
    author = "Jens {Kollascheck}",
    year = "2010",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783836641029",
    url = "https://m.diplom.de/document/227517"
}