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PNAS.1522923113
PNAS.1522923113
http://dx.doi.org/10.1073/PNAS.1522923113
Atmospheric methane isotopic record favors fossil sources flat in 1980s and 1990s with recent increase.
P356
Q36130920-65CF7CE7-7031-450B-BDA4-0A29D232C960
P356
PNAS.1522923113
http://dx.doi.org/10.1073/PNAS.1522923113