Voyush ID. Protoforms of information and communication activities during the reign of Vytautas (the second  half of the XIV – early XV century). Журнал Белорусского государственного университета. Журналистика [Internet]. 2019 Apr. 13 [cited 2026 Jul. 18];(1):4-13. Available from: https://journals.bsu.by/index.php/journalism/article/view/2329