@misc{indiciaec0e78fe1ab68,
  title = {The distribution, occurrence and environmental effect of mercury in Chinese coals},
  author = {Lingyun Zheng and Gaisheng Liu and C. L. Chou},
  year = {2007},
  doi = {10.1016/j.scitotenv.2007.05.037},
  url = {https://pubs.usgs.gov/publication/70031350},
  note = {Source identifier: 70031350}
}