SKUF'IN, Petr K. Anniversary of the commencement of the sg-3 Kola superdeep borehole drilling operations. Nexo Revista Científica, [S. l.], v. 34, n. 04, p. 1477–1489, 2021. DOI: 10.5377/nexo.v34i04.12693. Disponível em: https://camjol.info/index.php/NEXO/article/view/12693. Acesso em: 5 apr. 2025.