@article{MaXiaoZhangetal.2020,
  author    = {Jialiang Ma and Lin Xiao and Ke Zhang and Yukun Jiao and Zhenzhen Wang and Jinxiao Li and Wenmu Guo and Pengpeng Gao and Shenjun Qin and Cunliang Zhao},
  title     = {Geochemistry of carboniferous-permian coal from the Wujiawan mine, Datong coalfield, Northern China: modes of occurrence, origin of valuable trace elements, and potential industrial utilization},
  journal   = {Minerals},
  volume    = {10},
  number    = {(9), art. 776},
  doi       = {10.3390/min10090776},
  year      = {2020},
}