Jelonek, Zbigniew, and Iwona Jelonek. “Identifying Contaminants of Coal-Derived Inertinite in Charcoal Briquettes : Preliminary Findings of Microscopic Analysis”. Journal of Water and Land Development, vol. 64, no. 64, Mar. 2025, pp. 21-32, doi:10.24425/jwld.2024.151813.