Die Engelvorstellungen bei Ephräm dem Syrer - Cramer, Winfrid <osb>. (OLS)http://semarc/name/90670 (Pontificium Institutum Orientalium Studiorum, 1965)
Keywords: Efrem : Siro <santo; 306-373>. (OLS)http://semarc/subject/10355; Angelologia. (OLS)http://semarc/subject/5792