Majka, A., M. Klimczyk, K. Kucharski, and J. Muszyńska-Pałys. “HYDROGEN VALLEY AS A HUB FOR TECHNOLOGICAL COOPERATION BETWEEN SCIENCE, BUSINESS, LOCAL GOVERNMENT AND NGOS. AN OVERVIEW OF APPROACHES IN EUROPE”. Torun International Studies, vol. 1, no. 17, June 2023, pp. 5-15, doi:10.12775/TIS.2023.001.