Perovic, B., D. Klimenta, M. Jevtic, and M. Milovanovic. “A Transient Thermal Model for Flat-Plate Photovoltaic Systems and Its Experimental Validation”. Elektronika Ir Elektrotechnika, vol. 25, no. 2, Apr. 2019, pp. 40-46, doi:10.5755/j01.eie.25.2.23203.