BALCERZAK, Adam P.; PIETRZAK, Michał Bernard. RESEARCH AND DEVELOPMENT EXPENDITURES AND QUALITY OF LIFE IN EUROPEAN UNION COUNTRIES. Ekonomia i Prawo. Economics and Law, [S. l.], v. 14, n. 3, p. 285–302, 2015. DOI: 10.12775/EiP.2015.018. Disponível em: https://apcz.umk.pl/EiP/article/view/EiP.2015.018. Acesso em: 8 jul. 2025.