Protocol Relating to the Madrid Agreement Concerning the International Registration of Marks . EKI terminibaas Esterm. Институт эстонского языка, Сынавееб 2026. https://sonaveeb.ee/search/unif//esterm/Protocol%20Relating%20to%20the%20Madrid%20Agreement%20Concerning%20the%20International%20Registration%20of%20Marks/1/eng (26.08.2026)