@misc{indiciaebfc58c09e34f,
  title = {Coal-fired power generaion, new air quality regulations, and future U.S. coal production},
  author = {E. D. Attanasi and D. H. Root},
  year = {1999},
  url = {https://pubs.usgs.gov/publication/70073909},
  note = {Source identifier: 70073909}
}