Tyler, S.C., H.O. Ajie, M.L. Gupta, R.J. Cicerone, D.R. Blake, and E.J. Dlugokencky (1999), Carbon isotopic composition of atmospheric methane: A comparison of surface level and upper tropospheric air, J. Geophys. Res., 104, 13895-13910.
Carbon isotopic composition of atmospheric methane: A comparison of surface level and upper tropospheric air
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