@misc{indiciae1aa3c3b90789,
  title = {Analysis of eight argonne premium coal samples by X-ray fluorescence spectrometry},
  author = {J.R. Evans and G.A. Sellers and R. G. Johnson and D.V. Vivit and J. Kent},
  year = {2002},
  doi = {10.1021/ef00023a005},
  url = {https://pubs.usgs.gov/publication/70015860},
  note = {Source identifier: 70015860}
}