@book { DerBarcelonaProzessamBeispielgypten,
    title = "Der Barcelona-Prozess am Beispiel Ägypten",
    author = "Philipp {von Zitzewitz}",
    year = "2003",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832472917",
    url = "https://m.diplom.de/document/222589"
}