FIUK, Jacek Jan; DUTKOWSKI, Krzysztof; PIĄTKOWSKI, Piotr. An Experimental Study on the Thermal Efficiency of a Passive Solar Air Collector. Engineering Transactions, [S. l.], v. 65, n. 2, p. 251–268, 2017. DOI: 10.24423/engtrans.380.2017. Disponível em: https://et.ippt.pan.pl/index.php/et/article/view/380. Acesso em: 24 jul. 2025.