@misc{indiciaeeebc39491a39,
  title = {Distribution of gases in the unsaturated zone at a low-level radioactive-waste disposal site near Sheffield, Illinois},
  author = {Robert G. Striegl},
  year = {1988},
  doi = {10.3133/wri884025},
  url = {https://pubs.usgs.gov/publication/wri884025},
  note = {Source identifier: wri884025}
}