@misc{indiciae805446ed7f2d, title = {Field-scale sulfur hexafluoride tracer experiment to understand long distance gas transport in the deep unsaturated zone}, author = {Michelle Ann Walvoord and Brian J. Andraski and Christopher T. Green and David A. Stonestrom and Robert G. Striegl}, year = {2014}, doi = {10.2136/vzj2014.04.0045}, url = {https://pubs.usgs.gov/publication/70170468}, note = {Source identifier: 70170468} }