TY  - RPRT
TI  - Radiogenic strontium-87 as an index of geologic processes
AU  - C. E. Hedge
AU  - F.G. Walthall
PY  - 1963
DO  - 10.1126/science.140.3572.1214.b
UR  - https://pubs.usgs.gov/publication/70010716
ID  - 70010716
ER  -