STĘPNIAK-KUCHARSKA, Anna. Regional Differences in Innovation Activities of Industrial Enterprises in Poland. Equilibrium. Equilibrium. Quarterly Journal of Economics and Economic Policy, [S. l.], v. 9, n. 2, p. 73–92, 2014. DOI: 10.12775/EQUIL.2014.012. Disponível em: https://apcz.umk.pl/EQUIL/article/view/EQUIL.2014.012. Acesso em: 8 jul. 2025.