1.
DĄBROWSKI, Wojciech. 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. Online. 22 December 2008. No. 10, p. 5–20. [Accessed 22 July 2024]. DOI 10.1515/v10089-008-0009-3.