VOVK, Roman. The Eastern Flank of Europe: Ukraine’s Place in the Collective Security System .......... 69. In: BAJOR, Piotr (ed.). Eastern Partnership: The Role and Significance in the Process of Transformation of the Countries of Eastern Europe and the South Caucasus. Poland: Księgarnia Akademicka Publishing,2021. DOI: 10.12797/9788381386425.05. Disponível em: https://books.akademicka.pl/publishing/catalog/book/347/chapter/7726. Acesso em: 18 may. 2025.