Frik, Anton, and Juozas Bielskus. “Experimental Test Stand of a Heat Pump Integrated in Air Handling Unit”. Mokslas – Lietuvos ateitis / Science – Future of Lithuania 12 (September 22, 2020). Accessed November 23, 2024. https://tede.vgtu.lt/index.php/MLA/article/view/13075.