Smyrnova-Trybulska, Eugenia, et al. “Internationalisation of Education and Competences Approach in the Digital World – Experts’ Opinions: A Round Table Debate Hosted by IRNet Project Researchers”. International Journal of Research in E-Learning, vol. 4, no. 1, Feb. 2018, pp. 29-43, https://trrest.vot.pl/ojsus/index.php/IJREL/article/view/8338.