MEGALOVASILIS, P.; GODELITSAS, A.; PAPASTERGIOS, G.; FILIPPIDIS, A. ENVIRONMENTAL GEOCHEMISTRY OF PTOLEMAIS LIGNITES, INTERMEDIATE STERILES, AND COMBUSTION PRODUCTS. Bulletin of the Geological Society of Greece, [S. l.], v. 50, n. 4, p. 2241–2250, 2016. DOI: 10.12681/bgsg.14280. Disponível em: https://ejournals.epublishing.ekt.gr/index.php/geosociety/article/view/14280. Acesso em: 21 jan. 2025.