@misc{indiciae7a4ceca25167,
  title = {A high-pyrite semianthracite of Late Permian age in the Songzao Coalfield, southwestern China: Mineralogical and geochemical relations with underlying mafic tuffs},
  author = {S. Dai and X. Wang and W. Chen and D. Li and C. L. Chou and Y. Zhou and Chen Zhu and H. Li and Xudong Zhu and Y. Xing and W. Zhang and J. Zou},
  year = {2010},
  doi = {10.1016/j.coal.2010.06.004},
  url = {https://pubs.usgs.gov/publication/70037624},
  note = {Source identifier: 70037624}
}