J. M. Fiey, Jeanne-Nicole Mellon Saint-Laurent and Nathan P. Gibson, (eds.), "A Calendar Attributed to Jacob of Edessa" in last modified April 25, 2016, http://syriaca.org/bibl/1419
    
        
            
                
                    
                        Sebastian P
                        Brock
                    
                    A Calendar Attributed to Jacob of Edessa
                    http://syriaca.org/bibl/1419
                    18
                    http://zotero.org/groups/392292/items/X7723W5F
                
                
                    Parole de l'Orient
                    
                        1970
                    
                    1
                    2
                    415-429