Friedlingstein, P., Andrew, R. M., Rogelj, J., Peters, G. P., Canadell, J. G., Knutti, R., Luderer, G., Raupach, M. R., Schaeffer, M., Vuuren, D. P. v., Le Quéré, C. (2014): Persistent growth of CO2 emissions and implications for reaching climate targets. - Nature Geoscience, 7, 10, 709-715.https://doi.org/10.1038/ngeo2248