@misc{indiciae97afbb1287cc,
  title = {Chemical analyses in the World Coal Quality Inventory},
  author = {Susan J. Tewalt and Harvey E. Belkin and John R. SanFilipo and Matthew D. Merrill and Curtis A. Palmer and Peter D. Warwick and Alexander W. Karlsen and Robert B. Finkelman and Andy J. Park},
  year = {2010},
  doi = {10.3133/ofr20101196},
  url = {https://pubs.usgs.gov/publication/ofr20101196},
  note = {Source identifier: ofr20101196}
}