Michalak, Piotr, and Stanisław Grygierczyk. “Temperature Efficiency of Heat Exchangers in Air Handling Units”. Journal of Mechanical and Energy Engineering 3, no. 3 (December 23, 2019): 267-272. Accessed May 10, 2025. https://www.jmee.tu.koszalin.pl/ojs/index.php/jmee/article/view/133.