WITOŃ, Agnieszka. Knowledge and Expenditure on Research and Development in EU Countries. Krakow Review of Economics and Management/Zeszyty Naukowe Uniwersytetu Ekonomicznego w Krakowie, Krakow, n. 6(942), p. 21–37, 2015. DOI: 10.15678/ZNUEK.2015.0942.0602. Disponível em: https://krem.uek.krakow.pl/index.php/krem/article/view/514.. Acesso em: 20 sep. 2024.