Contributions of fossil fuel, biomass-burning, and biogenic emissions to carbonaceous aerosols in Zurich as traced by 14 C. Szidat, S., Jenk, T., M., Synal, H., Kalberer, M., Wacker, L., Hajdas, I., Kasper-Giebl, A., & Baltensperger, U. Journal of Geophysical Research, 111(D7):D07206, 2006.
Contributions of fossil fuel, biomass-burning, and biogenic emissions to carbonaceous aerosols in Zurich as traced by 14 C [pdf]Paper  Contributions of fossil fuel, biomass-burning, and biogenic emissions to carbonaceous aerosols in Zurich as traced by 14 C [link]Website  bibtex   

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