1. IIASA, Laxenburg, Austria
2. FZJ, Forschungszentrum Juelich GmbH, Juelich, Germany
3. SRI, Space Research Institute, Kiev, Ukraine
4. KPI, National Technical University of Ukraine, Igor Sikorsky Kyiv Polytechnic Institute, Kiev, Ukraine
5. Institute of Environmental Sciences, UNIGE, University of Geneva, Geneva, Switzerland
6. CREAF, Barcelona, Spain
7. CNR, National Research Council of Italy, Florence, Italy
8. Department of Mathematics, UNIPD, University of Padova, Padova, Italy
9. GFZ, Helmholtz Centre Potsdam, Potsdam, Germany