Contribution of anthropogenic and natural sources to atmospheric methane variability - Ciais, P.; Miller, J. B.; Dlugokencky, E. J.; Hauglustaine, D. A.; Prigent, C.; Van der Werf, G. R.; Peylin, P.; Brunke, E.-G.; Carouge, C.; Langenfelds, R. L.; Lathière, J.; Papa, F.; et al. (Nature Publishing Group, 2006)
http://dx.doi.org/10.1038/nature05132
Keywords: W; V; WW-YZ; TA-TD; U