Cezary Berezowski, Prawo międzynarodowe publiczne [Le droit international public], vol. 1, Warszawa 1966, PWN. Contemporary Central & East European Law, [S. l.], n. 7-8, p. 45–46, 1967. Disponível em: https://czasopisma.inp.pan.pl/index.php/cceel/article/view/1739. Acesso em: 6 oct. 2025.