SPYCHAŁA, Marcin. Key Economic Growth Factors in Poland and Selected Countries of the World During the Years 2005-2013. Studia Oeconomica Posnaniensia, Poznan, Polska, v. 3, n. 4, p. s. 5–29, 2015. DOI: 10.18559/66ansx12. Disponível em: https://journals.ue.poznan.pl/soep/article/view/3929. Acesso em: 3 sep. 2026.