@misc{indiciaee65f109e61ad,
  title = {Progression in sulfur isotopic compositions from coal to fly ash: Examples from single-source combustion in Indiana},
  author = {Jiang Yaofa and E.R. Elswick and Maria Mastalerz},
  year = {2008},
  doi = {10.1016/j.coal.2007.06.004},
  url = {https://pubs.usgs.gov/publication/70033356},
  note = {Source identifier: 70033356}
}