John Vourdoubas. Possibility of Using Floating Solar Photovoltaics in the Hybrid Energy Systems in the Islands of El Hierro, Spain and Crete, Greece. ASRJETS-Journal. 2022;90(1):461-475. Accessed September 22, 2025. https://www.asrjetsjournal.org/American_Scientific_Journal/article/view/8343