JANKIEWICZ, Mateusz. Economic convergence in the European Union at the regional level with particular attention to the impact of the COVID-19 pandemic – a spatio-temporal approach. Bulletin of Geography. Socio-economic Series. Online. 25 March 2024. No. 63, pp. 65-74. [Accessed 14 May 2024]. DOI 10.12775/bgss-2024-0005.