Gallier, Carlo, Benjamin Johannes Lutz, Karl Ludwig Brockmann and Caroline Dieckhöner (2014), KfW/ZEW CO2 Barometer 2014 - Carbon Edition, KfW Bankengruppe, Frankfurt am Main. Download
Gallier, Carlo, Benjamin Johannes Lutz, Karl Ludwig Brockmann and Caroline Dieckhöner (2014), KfW/ZEW CO2 Barometer 2014 - Carbon Edition, KfW Bankengruppe, Frankfurt am Main. Download
