Hese, S., Lucht, W., Schmullius, C., Barnsley, M., Dubayah, R., Knorr, D., Neumann, K., Riedel, T., Schröter, K. (2005): Global biomass mapping for an improved understanding of the CO2 balance - the Earth observation mission Carbon-3D. - Remote Sensing of Environment, 94, 1, 94-104.https://doi.org/10.1016/j.rse.2004.09.006