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Original Articles
Past atmospheric CO2 levels and the 13C/12C ratios in tree rings
Pieter P. TansIsotope Physics Laboratory, Rÿksuniversiteit Groningen, Westersingel 34, 9718 CM Groningen, The Netherlands
& Wim G. MookIsotope Physics Laboratory, Rÿksuniversiteit Groningen, Westersingel 34, 9718 CM Groningen, The Netherlands
Pages 268-283
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Received 20 Jun 1979, Accepted 04 Dec 1979, Published online: 15 Dec 2016
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