Anastassova L. and Luizov A., “MARKETING INNOVATIONS IN THE SMES IN BULGARIA AND ICELAND: EMPIRICAL STUDY ON CURRENT SITUATION”, IJITE, no. 1(13), pp. 157–164, Feb. 2018, Accessed: Oct. 11, 2026. [Online]. Available: https://rspublisher.org/index.php/ijite/article/view/643