KONTRA, Jenő. Role of geothermal energy in district heat supply in Hungary. Periodica Polytechnica Architecture, [S. l.], v. 38, n. 1, p. 21–24, 2007. 10.3311/pp.ar.2007-1.04. Disponível em: https://pp.bme.hu/ar/article/view/38. Acesso em: 3 may. 2024.