@misc{indiciae22c64849a661, title = {Geochemical and isotopic variations in shallow groundwater in areas of the Fayetteville Shale development, north-central Arkansas}, author = {Nathaniel R. Warner and Timothy M. Kresse and Phillip D. Hays and Adrian Down and Jonathan D. Karr and R.B. Jackson and Avner Vengosh}, year = {2013}, doi = {10.1016/j.apgeochem.2013.04.013}, url = {https://pubs.usgs.gov/publication/70155203}, note = {Source identifier: 70155203} }