SZCZEPANIAK, Iwona. Comparative advantages in Polish export to the European Union ? food products vs selected groups of non-food products. Oeconomia Copernicana, [S. l.], v. 9, n. 2, p. 287–308, 2018. DOI: 10.24136/oc.2018.015. Disponível em: https://journals.economic-research.pl/oc/article/view/755. Acesso em: 28 feb. 2024.