Geographic Subject
Switzerland
3
Israel
2
Mekong River Watershed
2
5.500
1
Algeria
1
Algiers
1
Alps
1
Cabora Bassa Dam (Mozambique)
1
Developing countries
1
Eulach River (Switzerland)
1
Gorgol
1
Mali
1
Mauritania
1
Mexico
1
Mozambique
1
Netherlands
1
Niger River Watershed
1
Rhône River Valley (Switzerland and France)
1
Scheldt River Watershed
1
Senegal River Delta (Mauritania and Senegal)
1
Winterthur
1
Winterthur (Switzerland)
1
Zambezi River Watershed
1