J. Słomczyńska, “Natural Convection in a Cylindrical Cavity Heated by an Internally-Located Strong Source”, Eng. Trans., vol. 41, no. 2, pp. 187–208, Jul. 1993, Accessed: Jul. 13, 2025. [Online]. Available: https://et.ippt.pan.pl/index.php/et/article/view/1564