@misc{indiciae10cd28f1653e,
  title = {Synchrotron radiation determination of elemental concentrations in coal},
  author = {J.R. Chen and N. Martys and E. C. T. Chao and J.A. Minkin and C.L. Thompson and A.L. Hanson and H.W. Kraner and K.W. Jones and B.M. Gordon and R.E. Mills},
  year = {1984},
  doi = {10.1016/0168-583x(84)90369-0},
  url = {https://pubs.usgs.gov/publication/70013244},
  note = {Source identifier: 70013244}
}