Bahareh Jahan Bakhsh, and Giorgio Cantino. “European Hydrogen Valleys As Catalysts for Systemic Decarbonization: A Sustainability-Oriented Innovation and Multi-Level Perspective Analysis”. Green Technology & Innovation, vol. 1, no. 2, Oct. 2025, pp. 1-15, https://gtijournal.com/index.php/gti/article/view/983.