@misc{indiciae0ef2c5dbc696,
  title = {Geochemical database of feed coal and coal combustion products (CCPs) from five power plants in the United States},
  author = {Ronald H. Affolter and Steve Groves and William J. Betterton and Benzel William and Kelly L. Conrad and Sharon M. Swanson and Leslie F. Ruppert and James G. Clough and Harvey E. Belkin and Allan Kolker and James C. Hower},
  year = {2011},
  doi = {10.3133/70006158},
  url = {https://pubs.usgs.gov/publication/70006158},
  note = {Source identifier: 70006158}
}