TY  - RPRT
TI  - Radiogenic helium in shallow groundwater within a clay till, southwestern Ontario
AU  - Amy L. Sheldon
AU  - D. Kip Solomon
AU  - Robert J. Poreda
AU  - Andrew G. Hunt
PY  - 2003
DO  - 10.1029/2002wr001797
UR  - https://pubs.usgs.gov/publication/70025029
ID  - 70025029
ER  -