Thomas A. Carlson (eds.), "al-Daylam" in The Beth Qaṭraye Gazetteer last modified January 10, 2020, https://bqgazetteer.bethmardutho.org/place/2958
   
      
         
            
               al-Daylam
               الديلم
               Dailam
               A region in northern Iran.
               
                  37.5 48.5
               
               
                  Attestation of name الديلم in
                     the Kitāb al-buldān of Aḥmad
                        ibn Abī Yaʿqūb al-Yaʿqūbī.
                  
               
               
                  Attestation of name الديلم in
                     the Kitāb al-aʿlāq al-nafīsa of
                        Aḥmad ibn ʿUmar Ibn Rustah.
                  
               
               
                  
                  
               
               https://bqgazetteer.bethmardutho.org/place/2958
               http://syriaca.org/place/2958
               https://pleiades.stoa.org/places/884140
               https://en.wikipedia.org/wiki/Daylam
               https://dbpedia.org/resource/Daylam
               
                  The Gorgias Encyclopedic Dictionary of the Syriac
                     Heritage
                  
                  441
               
               
                  https://pleiades.stoa.org/places/884140Pleiades: A Gazetteer of Past PlacesRoger BagnallRichard TalbertTom ElliottLindsay Holmanet al.
                  
               
               
                  Kitāb al-buldān
                  Aḥmad ibn Abī Yaʿqūb al-Yaʿqūbī
                  
                  234
               
               
                  Kitāb al-aʿlāq al-nafīsa
                  Aḥmad ibn ʿUmar Ibn Rustah
                  
                  89