Stawicki M, Wojewódzka-Wiewiórska A. Regional Differentiation of GDP at the NUTS-3 Level in Selected European Countries after their Accession to the European Union. Econ Reg [Internet]. 2023 Dec. 19 [cited 2024 Jul. 27];19(4):1224-36. Available from: https://economyofregions.org/ojs/index.php/er/article/view/769