Ugo Zanetti and Nathan P. Gibson (eds.), "Der Drachenkampf des heiligen Theodor" in last modified January 4, 2016, http://syriaca.org/bibl/860
    
        
            
                
                    
                        A.
                        Hengstenberg
                    
                    Der Drachenkampf des heiligen Theodor
                    http://syriaca.org/bibl/860
                
                
                    Oriens christianus
                    98
                    
                        1912
                    
                    Neue Serie
                    2
                    78-106 et 241-280