Kalesná, Katarína. “What Has Changed in European Concept of Undertaking? From „FENIN“ to „EASY PAY“”. Slovak Yearbook of European Union Law 1 (December 31, 2021): 81–88. Accessed May 5, 2024. https://syeul.flaw.uniba.sk/index.php/SYEUL/article/view/241.