Popescu, Irina Alina, Paulo Reis Mourao, and Yuriy Bilan. “Innovation, Coopetition and Spillover Effects in European Regions”. Journal of Business Economics and Management 24, no. 5 (December 18, 2023): 818–840. Accessed November 27, 2024. https://jbem.vgtu.lt/index.php/JBEM/article/view/19890.