LECHMAN, Ewa. Catching-up and Club Convergence From Cross-National Perspective a Statistical Study for the Period 1980?201. Equilibrium. Quarterly Journal of Economics and Economic Policy, Olsztyn, v. 7, n. 3, p. 95–109, 2012. DOI: 10.12775/EQUIL.2012.021. Disponível em: https://economic-policy.pl/index.php/eq/article/view/372. Acesso em: 15 jan. 2026.