International Conference on Entrepreneurial Competencies in a Changing World. (ECCW 2020). International Conference on Entrepreneurial Competencies in a Changing World : (ECCW 2020). (Eds.): Z. Caha, M. Ruschak, V. Velková. 1st Edition. Les Ulis : Édition Diffusion Presse Sciences, 2021. SHS Web of Conferences, 90. Dostupné na : <https://www.shs-conferences.org/articles/shsconf/abs/2021/01/contents/contents.html> ISSN 2261-2424.