Steady-state heat rejection rates for a coaxial borehole heat exchanger during passive and active cooling determined with the novel step thermal response test method. Rud.-geol.-naft. zb. [Internet]. 2018 Feb. 23 [cited 2025 Aug. 24];33(2):61-7. Available from: https://ojs.srce.hr/index.php/rgn/article/view/5704