1. International Institute of Applied Systems Analysis, A-2361 Laxenburg, Austria. Institute for Advanced Studies, A-1060 Vienna, Austria.
2. Chalmers University of Technology, Sweden.
3. International Institute of Applied Systems Analysis, A-2361 Laxenburg, Austria.
4. Royal Institute of Technology, Sweden.
5. University of São Paulo, Brazil.
6. Massey University, New Zealand.
7. Joanneum Research, Austria.
8. National Institute for Environmental Studies, Japan.
9. Royal Institute of Technology, Sweden. Shanghai Jiaotong y. Yamagata University, China.
10. Université catholique de Louvain, Belgium