@misc{indiciae25028a4ab2d4,
  title = {Low-btu gas in the US Midcontinent: A challenge for geologists and engineers},
  author = {K. David Newell and Saibal Bhattacharya and M. Scott Sears},
  year = {2009},
  url = {https://pubs.usgs.gov/publication/70036825},
  note = {Source identifier: 70036825}
}