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- U.S. Department of Energy. National Energy Efficiency and Renewable... (1)
- Uehlein, Joe (1)
- Underwood, C. (1)
- United States. Department of Energy. Energy Efficiency and Renewable... (2)
- United States. Department of Energy. Oak Ridge National Laboratory (1)
- United States. Environmental Protection Agency (2)
- United States. Global Change Research (1)
- United States. National Highway Transportation Safety Administration (1)
- Uriot, Joseph (1)
- Uzanne, Octave (1)