BOROWIEC, Arkadiusz. The impact of public procurement system on the development of competition in the economy in the light of empirical research. Oeconomia Copernicana, [S. l.], v. 8, n. 1, p. 37–50, 2017. DOI: 10.24136/oc.v8i1.3. Disponível em: https://journals.economic-research.pl/oc/article/view/16. Acesso em: 23 jul. 2024.