Odei, Samuel Amponsah, Viktor Prokop, and Jan Stejskal. “Innovation Collaborations of Firms: The Case of Hungarian Multinational Companies”. Economy of Regions 16, no. 1 (March 30, 2020): 257–267. Accessed April 24, 2026. https://economyofregions.org/ojs/index.php/er/article/view/1740.