@misc{indiciae89941f665d4f,
  title = {Geologic coal assessment: The interface with economics},
  author = {E. D. Attanasi},
  year = {2001},
  doi = {10.1023/a:1012565124202},
  url = {https://pubs.usgs.gov/publication/70010422},
  note = {Source identifier: 70010422}
}