@misc{indiciae874bd4079ab6,
  title = {Preliminary study on the mode of occurrence of arsenic in high arsenic coals from southwest Guizhou Province},
  author = {Z. Ding and B. Zheng and Jiahua Zhang and H. E. Belkin and R. B. Finkelman and F. Zhao and D. Zhou and Y. Zhou and C. Chen},
  year = {1999},
  doi = {10.1007/bf02877793},
  url = {https://pubs.usgs.gov/publication/70021212},
  note = {Source identifier: 70021212}
}