DAVIDSON, Natalia Borisovna; MARIEV, Oleg Svyatoslavovitch. The impact of spatial concentration on enterprise performance. Economy of Regions, [S. l.], v. 11, n. 4, p. 95–105, 2015. DOI: 10.17059/2015-4-8. Disponível em: https://www.economyofregions.org/ojs/index.php/er/article/view/2274. Acesso em: 17 jun. 2026.