Civilizaciebis da ganmanatleblobis dialogi ekvtime iberielis salit’erat’uro šemokmedebaši: gregori didis Dialogorum Libri-is šemoγc’eva kartul lit’erat’uraši [= Dialogue of civilizations and enlightenment in the literary activity of Euthymius the Iberian: the entry into Georgian literature of the “Dialogorum libri” of Gregory the Great]