CHANDRA, D.; SRIVASTAVA, G. P. Volatile Displacement of Burnt Coals. Journal of Geological Society of India, [S. l.], v. 21, n. 6, p. 306–310, 1980. Disponível em: https://geosocindia.com/index.php/jgsi/article/view/64703. Acesso em: 20 sep. 2024.