TY  - RPRT
TI  - Paleoclimate. A variable sun and the Maya collapse.
AU  - R A Kerr
PY  - 2001
DO  - 10.1126/science.292.5520.1293
UR  - https://pubmed.ncbi.nlm.nih.gov/11360980/
ID  - 11360980
ER  -