@misc{indiciae3415eebf376b,
  title = {Abundance and modes of occurrence of mercury in some low-sulfur coals from China},
  author = {Lingyun Zheng and Gaisheng Liu and C. L. Chou},
  year = {2008},
  doi = {10.1016/j.coal.2007.05.002},
  url = {https://pubs.usgs.gov/publication/70033484},
  note = {Source identifier: 70033484}
}