FLAK, Olaf; GŁÓD, Grzegorz. Features of Polish companies. Results of the company competitiveness barometer 2014. Oeconomia Copernicana, [S. l.], v. 6, n. 3, p. 117–135, 2015. DOI: 10.12775/OeC.2015.024. Disponível em: https://journals.economic-research.pl/oc/article/view/168. Acesso em: 22 feb. 2024.