Vourdoubas, John. “Renewable Energies Use for Hydrogen Production Powering Fuel Cell Vehicles in the Island of Crete, Greece”. American Scientific Research Journal for Engineering, Technology, and Sciences 75, no. 1 (January 15, 2021): 106–120. Accessed September 23, 2025. https://www.asrjetsjournal.org/American_Scientific_Journal/article/view/6555.