LOPATIN, Evgeniy. Cost of Heating Pump Systems in Russia. International Journal of Energy Economics and Policy, [S. l.], v. 10, n. 3, p. 219–223, 2020. Disponível em: https://mail.econjournals.com/index.php/ijeep/article/view/9056. Acesso em: 23 dec. 2024.