GJERKEÅ„, Henrik; ZAVRL, Marjana Ńijanec; STEGNAR, GaÅ„per. HEAT PUMPS AND COST OPTIMAL BUILDING PERFORMANCE. European Scientific Journal, ESJ, [S. l.], v. 10, n. 10, 2014. Disponível em: https://test.eujournal.org/index.php/esj/article/view/4231. Acesso em: 14 may. 2025.