@book { IslamicWealthManagementimberblick,
    title = "Islamic Wealth Management im Überblick",
    author = "Matthias {Körber}",
    year = "2009",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783836632867",
    url = "https://m.diplom.de/document/227042"
}