@book { DasHybridederSlums,
    title = "Das Hybride der Slums",
    author = "Eike {Musall}",
    year = "2009",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783836631402",
    url = "https://m.diplom.de/document/226909"
}