JANIEC, Zygmunt. Development of the European Union International Activeness – Institutional, Substantial and Spatial Aspects. Economic and Political Thought, [S. l.], v. 3233, n. 1/2, 2011. Disponível em: https://mysl.lazarski.pl/mysl/article/view/1890. Acesso em: 7 nov. 2024.