@misc{indiciae27b1c58ff1de,
  title = {Preliminary estimate of coal resources in the Gillette coalfield affected by the location of the Burlington Northern/Union Pacific joint mainline railroad},
  author = {Timothy J. Rohrbacher and Jon E. Haacke and David C. Scott and Lee M. Osmonson and James A. Luppens},
  year = {2006},
  doi = {10.3133/ofr20061206},
  url = {https://pubs.usgs.gov/publication/ofr20061206},
  note = {Source identifier: ofr20061206}
}