TY  - GEN
AU  - Beck,J W
AU  - Richards,D A
AU  - Edwards,R L
AU  - Silverman,B W
AU  - Smart,P L
AU  - Donahue,D J
AU  - Hererra-Osterheld,S
AU  - Burr,G S
AU  - Calsoyas,L
AU  - Jull,A J
AU  - Biddulph,D
TI  - Extremely large variations of atmospheric 14C concentration during the last glacial period
SN  - 0036-8075
PY  - 2001///0712
N1  - Publication Type: Journal Article
UR  - https://doi.org/10.1126/science.1056649
ER  -