TY  - RPRT
TI  - Dating groundwater with trifluoromethyl sulfurpentafluoride (SF 5CF3), sulfur hexafluoride (SF6), CF 3Cl (CFC-13), and CF2Cl2 (CFC-12)
AU  - E. Busenberg
AU  - Niel Plummer
PY  - 2008
DO  - 10.1029/2007wr006150
UR  - https://pubs.usgs.gov/publication/70033592
ID  - 70033592
ER  -