* Bogoslovskie sobesedovanija mezhdu Katolikosom Tserkvi Vostoka Mar Timateosom I (727-823) i khalifom al-Mahdi, povelitelem pravovernykh / Russian translation by Nikolai N. Seleznyov in consultation with Dmitry A. Morozov.
* Bogoslovskie sobesedovanija mezhdu Katolikosom Tserkvi Vostoka Mar Timateosom I (727-823) i khalifom al-Mahdi, povelitelem pravovernykh / Russian translation by Nikolai N. Seleznyov in consultation with Dmitry A. Morozov.