@misc{indiciaebecbaa45458a,
  title = {Pedologic and climatic controls on Rn-222 concentrations in soil gas, Denver, Colorado},
  author = {S. Asher-Bolinder and D.E. Owen and R.R. Schumann},
  year = {2012},
  doi = {10.1029/gl017i006p00825},
  url = {https://pubs.usgs.gov/publication/70016293},
  note = {Source identifier: 70016293}
}