The Struggle for National Sovereignty and International Status of the Ukrainian Cossack State (Second Half of the XVII–XVIII centuries). University Scientific Notes, [S. l.], n. 2 (80), p. 6–17, 2021. DOI: 10.37491/UNZ.80.1. Disponível em: https://unz.univer.km.ua/index.php/unz/article/view/80_6-17. Acesso em: 15 feb. 2026.