Thomas A. Carlson (ed.), "Don River" in last modified August 9, 2017, http://syriaca.org/place/2938
   
      
         
            
               Don River
               طانيس
               A river that flows into the Black Sea from the north
               
                  47.5437096 40.7291755
               
               
                  Attestation of name طانيس in the 
                        Kitāb al-aʿlāq al-nafīsa of Aḥmad ibn ʿUmar Ibn Rustah.
                  
               
          
               http://syriaca.org/place/2938
               https://pleiades.stoa.org/places/825398
               https://en.wikipedia.org/wiki/Don_River_(Russia)
               https://dbpedia.org/resource/Don_River_(Russia)
               
                  https://pleiades.stoa.org/places/825398
                  
               
               
                  Kitāb al-aʿlāq al-nafīsa
                  Aḥmad ibn ʿUmar Ibn Rustah
                  
                  85