- Film historique de la Construction de l'aménagement Hydro-électrique de pompage-turbinage de l'Hongrin (1972), Suisse.
- Construction of the Hydro-electric pump-turbine development of Hongrin (1972) Switzerland.
This 240MW development is the first in Switzerland incorporating daily-cycle pumped storage ina large scale.
- Bau von Wasserpumpspeicher Hongrin (1972), Schweiz.
5 сен 2024