Poberezhnyk, Vasyl, and Ivan Opirskyy. “DEVELOPMENT OF THE CONCEPT OF THE METHOD OF USING BLOCKCHAIN TECHNOLOGY FOR BUILDING A MESSAGE EXCHANGE SYSTEM”. Ukrainian Information Security Research Journal 25, no. 2 (August 1, 2023): 62–70. Accessed June 14, 2026. http://jrnl.kai.edu.ua/index.php/ZI/article/view/17673.