Sūdžius, Vytautas, and Vytautas Mackevičius. “A Gap and Damage in the Security of Payment Cards”. Business: Theory and Practice 7, no. 3 (September 27, 2006): 146-149. Accessed December 23, 2024. https://btp.vilniustech.lt/index.php/BTP/article/view/11606.