EFREMENKO, N. “PROTECTIVE HOLOGRAMS IN BANKNOTES OF THE EUROPEAN UNION: THE WAYS OF IMITATION”. Vestnik of Polotsk State University. Part D. Economic and legal sciences, no. 14 (October 30, 2017): 167-171. Accessed November 12, 2026. https://journals.psu.by/economics/article/view/3187.