Lefakis, L. “Extended Subject – Matter under Intellectual Property Law: The Paradigm of Copyright, Trademarks and Patents Regarding Computer Icons and Graphical User Interfaces”. Journal of Integrated Information Management, vol. 5, no. 1, May 2024, pp. 26-33, https://ejournals.epublishing.ekt.gr/index.php/jiim/article/view/37881.