V. U. . Zuyeva, “Towards the semantic differentiation problem of epistolary text denotations in Ancient Russian and Old Russian written monuments: Greecisms грамота, епистолия, хартия, харатия”, Журнал Белорусского государственного университета. Филология, no. 2, pp. 101–114, Jun. 2023, Accessed: Jul. 18, 2026. [Online]. Available: https://journals.bsu.by/index.php/philology/article/view/5485