{"id":"000876102","type":"book","title":"Frühe Ismailiya und Fatimiden im Lichte der Risālat Iftitāh ad-Da'wa","publisher":"Selbstverlag des Orientalischen Seminars der Universität","publisher-place":"Bonn","author":[{"family":"Nagel","given":"Tilman"}],"issued":{"raw":"1972"}}