TY  - RPRT
TI  - Geophysical, archaeological and historical evidence support a solar-output model for climate change
AU  - C. A. Perry
AU  - K.J. Hsu
PY  - 2000
DO  - 10.1073/pnas.230423297
UR  - https://pubs.usgs.gov/publication/70022296
ID  - 70022296
ER  -