2Concentrations of Minor Elements and Regional Distribution of Arsenic in Late Paleozoic Coals from North China Platform111-114
13Effects of Water Copperas on Spontaneous Combustion Characteristic of Anthracite from No. 5 Coal Mine in Yangquan Mining Area157-160
20Properties of Target Coal Reservoirs and Conditions of Coalbed Methane Development in Liujia CBM-Prospecting District183-185