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Chicago-Zitierstil (17. Ausg.)Popa, M. E., M. K. Vollmer, A. Jordan, W. A. Brand, S. L. Pathirana, M. Rothe, und T. Röckmann. Vehicle Emissions of Greenhouse Gases and Related Tracers from a Tunnel Study: CO : CO<sub>2</sub>, N<sub>2</sub>O : CO<sub>2</sub>, CH<sub>4</sub> : CO<sub>2</sub>, O<sub>2</sub> : CO<sub>2</sub> Ratios, and the Stable Isotopes <sup>13</sup>C and <sup>18</sup>O in CO<sub>2</sub> and CO. Copernicus Publications, 2014.
MLA-Zitierstil (9. Ausg.)Popa, M. E., et al. Vehicle Emissions of Greenhouse Gases and Related Tracers from a Tunnel Study: CO : CO<sub>2</sub>, N<sub>2</sub>O : CO<sub>2</sub>, CH<sub>4</sub> : CO<sub>2</sub>, O<sub>2</sub> : CO<sub>2</sub> Ratios, and the Stable Isotopes <sup>13</sup>C and <sup>18</sup>O in CO<sub>2</sub> and CO. Copernicus Publications, 2014.