Friedrich, J. External Organizations;
Oberhänsli, Hedi 5.2 Climate Dynamics and Landscape Evolution, 5.0 Earth Surface Processes, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;
Friedrich, J., Oberhänsli, H. (2005): Present geochemical state of the Aral Sea and consequences for the ecosystem, (Geophysical Research Abstracts, Vol. 7, 03172), 2nd General Assembly European Geosciences Union (Vienna, Austria 2005).