@book { PopulrerIslam,
    title = "Populärer Islam",
    author = "Nurullah {Uslu}",
    year = "2012",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783656286349",
    url = "https://www.hausarbeiten.de/document/202443"
}