@misc{indiciae50f16f7e0f77,
  title = {Studies on geological background and source of fluorine in drinking water in the North China Plate fluorosis areas},
  author = {K. Luo and F. Feng and H. Li and C. L. Chou and Z. Feng and D. Yunshe},
  year = {2008},
  doi = {10.1080/02772240701456091},
  url = {https://pubs.usgs.gov/publication/70031850},
  note = {Source identifier: 70031850}
}