Ferreiro Garcia, Ramon, and Jose Carbia carril. “Combined Cycle Consisting of Closed Processes Based Cycle Powered by A Reversible Heat Pump That Exceed Carnot Factor”. JOURNAL OF ADVANCES IN PHYSICS 15 (February 7, 2019): 6056–6078. Accessed May 20, 2024. https://www.rajpub.com/index.php/jap/article/view/8034.