Lalova, Teodora. “TRADE MARKS: LEGAL ASPECTS AND PRACRTICAL CHALLENGES. ACKNOWLEDGMENT OF RIGHTS TO UNREGISTERED SIGNS”. E-Journal VFU, no. 26 (September 17, 2026): 652–661. Accessed September 18, 2026. https://ejournal.vfu.bg/index.php/vfu/article/view/383.