DREGER, Marcin. Methane emissions in selected hard-coal mines of the Upper Silesian Coal Basin in 1997–2016. Geology, Geophysics and Environment, [S. l.], v. 45, n. 2, p. 121, 2019. DOI: 10.7494/geol.2019.45.2.121. Disponível em: https://journals.agh.edu.pl/geol/article/view/3115. Acesso em: 28 apr. 2025.