Succession to the rule in Islam : with special reference to the early Abbasid period 2026-02-15T08:05:31+03:00 DEBUG: VuFind\ILS\Driver\Folio: Token taken from global cache: eyJhbGciOiJIUzI1NiJ9.eyJzdWIiO... - Chejne, Anwar G. (Muhammad Ashraf, 1979)