GÓRNA, J.; GÓRNA, K.; SZULC, E. Analysis of β-Convergence. From Traditional Cross-Section Model to Dynamic Panel Model. Dynamic Econometric Models, [S. l.], v. 13, p. 127–144, 2013. DOI: 10.12775/DEM.2013.007. Disponível em: https://apcz.umk.pl/DEM/article/view/DEM.2013.007. Acesso em: 28 mar. 2024.