MICHELSEN, Olaf; BERTELSEN, Finn. Den varme underground. Geotermiske reservoir-formationer i Danmark, . Varv, [S. l.], v. 1979, n. 2, p. 41–50, 1979. DOI: 10.7146/varv.v1979i2.148866. Disponível em: https://tidsskrift.dk/varv/article/view/148866. Acesso em: 6 dec. 2025.