APETREI, I. . The Digital Green Certificate - Guarantee of Free Movement within the EU or Means of Discrimination?. Anuarul Universitatii "Petre Andrei" din Iasi - Fascicula: Drept, Stiinte Economice, Stiinte Politice, [S. l.], v. 28, p. 31-42, 2021. Disponível em: https://lumenpublishing.com/journals/index.php/upa-sw/article/view/5021. Acesso em: 8 dec. 2025.