Bogosluzhebnii͡at chin, preveden ot sv. brati͡a Kiril i Metodiĭ v nachaloto na ti͡akhnata Moravska misii͡a

Blagoĭ Chifli͡anov, Methodius Saint, Apostle of the Slavs, Cyril Saint, Apostle of the Slavs, Orthodox Eastern Church