Bartecki, Krzysztof. “Concentric-Tube Heat Exchanger Laboratory Setup – Functional Extensions and Preliminary Tests Toward a Layered Control Structure”. Bulletin of the Polish Academy of Sciences Technical Sciences (June 12, 2026): 1142. Accessed August 15, 2026. https://wydawnictwo.pan.pl/index.php/bpasts/article/view/1142.