@misc{indiciae35060d13344d, title = {Flow of river water into a Karstic limestone aquifer. 1. Tracing the young fraction in groundwater mixtures in the Upper Floridan Aquifer near Valdosta, Georgia}, author = {Niel Plummer and E. Busenberg and J. B. McConnell and S. Drenkard and P. Schlosser and R. L. Michel}, year = {1998}, doi = {10.1016/s0883-2927(98)00031-6}, url = {https://pubs.usgs.gov/publication/70020487}, note = {Source identifier: 70020487} }