TY  - RPRT
TI  - Models of groundwater ages and residence times
AU  - D. K. Solomon
AU  - L.N. Plummer
AU  - Eurybiades Busenberg
AU  - P.G. Cook
PY  - 2006
UR  - https://pubs.usgs.gov/publication/70198534
ID  - 70198534
ER  -