Halm, Heinz (2003). Die Kalifen von Kairo: Die Fatimiden in Ägypten, 973–1074 [The Caliphs of Cairo: The Fatimids in Egypt, 973–1074] (in German). Munich: C. H. Beck. ISBN 3-406-48654-1.
Halm, Heinz (2003). Die Kalifen von Kairo: Die Fatimiden in Ägypten, 973–1074 [The Caliphs of Cairo: The Fatimids in Egypt, 973–1074] (in German). Munich: C. H. Beck. ISBN 3-406-48654-1.