Challenges and Emerging Solutions in Coal Analysis Technology Based on Laser-Induced Breakdown Spectroscopy. X-Disciplinarity, [S. l.], v. 2, n. 2, p. 1, 2026. DOI: 10.63174/xdi.UCKJ7693. Disponível em: https://instipub.com/xdi/article/view/91. Acesso em: 5 jun. 2026.