Michael Roggenburg https://figshare.com/articles/thesis/TECHNO-ECONOMICS_ON_THE_APPLICATION_OF_HYDRAULICS_IN_WIND_TURBINE_DRIVE-TRAINS_THE_DEVELOPMENT_OF_INTEGRATED_RENEWABLE_ENERGY_SYSTEMS_FOR_USE_IN_WATER_SECURITY_ALONG_THE_US-MEXICO_BORDER/13341872.
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2020