Witoń, Agnieszka. “Knowledge and Expenditure on Research and Development in EU Countries”. Krakow Review of Economics and Management/Zeszyty Naukowe Uniwersytetu Ekonomicznego w Krakowie, no. 6(942) (December 7, 2015): 21–37. Accessed November 10, 2024. https://krem.uek.krakow.pl/index.php/krem/article/view/514.