Theodorakopoulos, Leonidas, Ioanna Kalliampakou, Alexandra Theodoropoulou, and Constantinos Halkiopoulos. “AI-Driven Information Systems for Sustainable Tourism: A Review of IoT and Big Data Applications”. Journal of Human, Earth, and Future 7, no. 1 (March 1, 2026): 263–291. Accessed March 17, 2026. https://www.hefjournal.org/index.php/HEF/article/view/533.