Safety and ventilation in coal mines, based on underground environmental engineering. REVISTA AMBIENTAL AGUA, AIRE Y SUELO, [S. l.], v. 5, n. 2, p. 1–5, 2014. DOI: 10.24054/aaas.v5i2.2011. Disponível em: https://ojs.unipamplona.edu.co/index.php/aaas/article/view/2011. Acesso em: 16 oct. 2025.