Boyarchuk, Vitaliy, Sergiy Korobka, Mykhailo Babych, and Roman Krygul. “Results of Research into Efficiency of a Flat Solar Air Heliocollector With a Wavy Absorbing Surface”. Eastern-European Journal of Enterprise Technologies 1, no. 8 (97) (January 22, 2019): 24–36. Accessed April 28, 2024. https://journals.uran.ua/eejet/article/view/154550.