Çınar, Ibrahim, and Cem Şensöğüt. “Methane and Coal Dust Problem in Underground Coal Mining and Alternative Ventilation Techniques: Methane and Coal Dust Problem in Underground Coal Mining and Alternative Ventilation Techniques”. International Journal of Economic and Environmental Geology 14, no. 2 (April 14, 2023): 6–10. Accessed September 18, 2025. http://www.econ-environ-geol.org/index.php/ojs/article/view/130.