@misc{indiciae77543b1a1a25,
  title = {Characterization of the origin of coalbed gases in southeastern Illinois Basin by compound-specific carbon and hydrogen stable isotope ratios},
  author = {D. Strapoc and Maria Mastalerz and C. Eble and A. Schimmelmann},
  year = {2007},
  doi = {10.1016/j.orggeochem.2006.09.005},
  url = {https://pubs.usgs.gov/publication/70033047},
  note = {Source identifier: 70033047}
}