@book { PayerorPlayerTheRoleoftheEuropeanUnionintheMiddleEastPeaceProcess,
    title = "Payer or Player? The Role of the European Union in the Middle East Peace Process",
    author = "Steffen {Schulz}",
    year = "2002",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    url = "https://m.diplom.de/document/220956"
}