Open Access Research Paper Views (348) Download (14) Quantitative and qualitative characterization of coal formations expansion in Iran; introducing and case study: coal mines of East Azarbaijan coal-bearing zone Adel Afkhami Nahand J. Bio. Env. Sci.6( 6), 493-500, June 2015. Key: CoalKaliberKhattabMaraghehMethane Details
