TY - RPRT TI - Flow of river water into a karstic limestone aquifer: 2. Dating the young fraction in groundwater mixtures in the Upper Floridan aquifer near Valdosta, Georgia AU - Niel Plummer AU - E. Busenberg AU - S. Drenkard AU - P. Schlosser AU - B. Ekwurzel AU - R. Weppernig AU - J. B. McConnell AU - R. L. Michel PY - 1998 DO - 10.1016/s0883-2927(98)00032-8 UR - https://pubs.usgs.gov/publication/70020591 ID - 70020591 ER -