引用本文: | 许琪. 滇东黔西晚二叠世煤层中伴生元素的成因分布类型[J]. 煤田地质与勘探, 1990, 18(5): 13-17. |
Citation: | GENETIC DISTRIBUTION TYPES OF ASSOCIATED ELEMENTS IN LATE PERMIAN COAL SEAMS IN EASTERN YUNNAN PROVINCE AND GUIZHOU PROVINCE,CHINA[J]. COAL GEOLOGY & EXPLORATION, 1990, 18(5): 13-17. |