Long-term observations of atmospheric CO2 and carbon isotopes at continental sites in Germany |
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Authors: | INGEBORG LEVIN ROLF GRAUL NEIL B A TRIVETT |
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Institution: | Institut für Umweltphysik, University of Heidelberg, Germany;Umweltbundesamt, Meβstelle Schauinsland, Germany;;Atmospheric Environment Service, Toronto, Canada |
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