CHOMIAK, Lilianna. Variation of lignite ash in vertical and horizontal sections of mining wallsin the Konin Lignite Mine, central Poland. Geology, Geophysics and Environment, [S. l.], v. 46, n. 1, p. 17, 2020. DOI: 10.7494/geol.2020.46.1.17. Disponível em: https://journals.agh.edu.pl/geol/article/view/3621. Acesso em: 12 apr. 2025.