WANG, Boyang; QIN, Yong; SHEN, Jian; WANG, Gang; LI, Jiuqing. Formation Environment of Main Brown Coal Seam in Xi-2 Minefield of Shengli Coalfield Based on Coal Ash Phase Analysis. Journal of Geological Society of India, [S. l.], v. 92, n. 1, p. 111–119, 2018. DOI: 10.1007//s12594-018-0960-4. Disponível em: http://www.geosocindia.com/index.php/jgsi/article/view/129902. Acesso em: 3 jun. 2024.