WIDERA, Marek. Macroscopic lithotype characterisation of the 1st Middle-Polish (1st Lusatian) Lignite Seam in the Miocene of central Poland. Geologos, [S. l.], v. 18, n. 1, p. 1–11, 2012. DOI: 10.2478/v10118-012-0001-5. Disponível em: https://pressto.amu.edu.pl/index.php/logos/article/view/v10118-012-0001-5. Acesso em: 17 may. 2024.