@misc{indiciae4292f283ddfe,
  title = {Effects of groundwater flow on the distribution of biogenic gas in parts of the northern Great Plains of Canada and United States},
  author = {Lawrence O. Anna},
  year = {2011},
  doi = {10.3133/sir20105251},
  url = {https://pubs.usgs.gov/publication/sir20105251},
  note = {Source identifier: sir20105251}
}