DĄBROWSKI, W. Investigating Non-Governmental Organisations Cooperating Across the European Union External Border. Examples from Polish-Russian (Kaliningrad Oblast) And Polish-Ukrainian Border Regions. Bulletin of Geography. Socio-economic Series, [S. l.], n. 10, p. 5–20, 2008. DOI: 10.1515/v10089-008-0009-3. Disponível em: https://apcz.umk.pl/BGSS/article/view/v10089-008-0009-3. Acesso em: 3 jul. 2024.