OIKONOMOPOULOS, I.; PERRAKI, T.; TOUGIANNIDIS, N. FTIR STUDY OF TWO DIFFERENT LIGNITE LITHOTYPES FROM NEOCENE ACHLADA LIGNITE DEPOSITS IN NW GREECE. Bulletin of the Geological Society of Greece, [S. l.], v. 43, n. 5, p. 2284–2293, 2010. DOI: 10.12681/bgsg.14312. Disponível em: https://ejournals.epublishing.ekt.gr/index.php/geosociety/article/view/14312. Acesso em: 2 may. 2024.