Explaining the Meaning of ‘Grey Zones’ in Public International Law Based on the Example of the Conflict in Ukraine. Contemporary Central & East European Law, [S. l.], n. 1 (133), p. 75–93, 2020. DOI: 10.37232/cceel.2019.07. Disponível em: https://czasopisma.inp.pan.pl/index.php/cceel/article/view/2077. Acesso em: 27 sep. 2025.