SZLĘZAK-MATUSEWICZ, Joanna. Models of tax incentives for R&D activities of enterprises in European Union countries. Copernican Journal of Finance & Accounting, [S. l.], v. 3, n. 1, p. 145–160, 2014. DOI: 10.12775/CJFA.2014.012. Disponível em: https://apcz.umk.pl/CJFA/article/view/CJFA.2014.012. Acesso em: 10 jan. 2025.