Ugo Zanetti and Nathan P. Gibson (eds.), "The Syriac Original of Pseudo-Methodius’ Apocalypse" in Proceedings of the Twenty-Seventh International Congress of Orientalists. Ann Arbor, Michigan 13th-19th August 1967 last modified January 4, 2016, http://syriaca.org/bibl/1057
    
        
            
                
                    
                        P.J.
                        Alexander
                    
                    The Syriac Original of Pseudo-Methodius’
                     Apocalypse
                    http://syriaca.org/bibl/1057
                
                
                    
                        D.
                        Sinor
                    
                    Proceedings of the Twenty-Seventh International
                     Congress of Orientalists. Ann Arbor, Michigan 13th-19th August 1967
                    
                        Wiesbaden
                        1971
                    
                    106-107