Roszko-Wójtowicz, Elżbieta, and Jacek Białek. “Measurement of the Average Innovativeness Change over Time in the EU Member States”. Journal of Business Economics and Management 20, no. 2 (March 14, 2019): 268-293. Accessed December 4, 2024. https://jcem.vgtu.lt/index.php/JBEM/article/view/8337.