TY - RPRT TI - Use of 3H/3He Ages to evaluate and improve groundwater flow models in a complex buried-valley aquifer AU - Rodney A. Sheets AU - E. Scott Bair AU - Gary L. Rowe PY - 1998 DO - 10.1029/98wr00007 UR - https://pubs.usgs.gov/publication/70020425 ID - 70020425 ER -