Golubovska, Elena, Biljana Citkuseva Dimitrovska, and Roman Golubovski. “ANALYTICAL ESTIMATION OF THE OPTIMAL PV PANEL TILT BASED ON A CLEAR-SKY IRRADIANCE MODEL”. Journal of Energy Technology 16, no. 4 (March 5, 2025): 41–53. Accessed February 26, 2026. https://old.journals.um.si/index.php/jet/article/view/5000.