БАБЕНКО ВГ, МЕЛЬНИК ОГ, МЕЛЬНИК РП. Сlassification of three-digit elementary functions for cryptographic transformation of the information. Bezpeka ìnf. [Internet]. 2013 Apr. 15 [cited 2026 Feb. 10];19(1):56-9. Available from: https://jrnl.nau.edu.ua/index.php/Infosecurity/article/view/4705