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Author/Creator
- United States16
- United States. Congress. House. Committee on Science and Technology (2007). Subcommittee on Energy and Environment8
- United States. Congress. House. Committee on Science, Space, and Technology. Subcommittee on Energy Research and Development8
- United States. Congress. Senate. Committee on Energy and Natural Resources8
- National Renewable Energy Laboratory (U.S.)6
- United States. Congress. House. Committee on Science, Space, and Technology (2011). Subcommittee on Energy, author6
- United States. Congress. House. Committee on Science, Space, and Technology. Subcommittee on Environment6
- United States. Department of State5
- ebrary, Inc5
- European Commission. Directorate-General for Energy4
- United States. Congress. House. Select Committee on Energy Independence and Global Warming4
- United States. Congress. Senate. Committee on Energy and Natural Resources. Subcommittee on Energy Research and Development4
- Eder, Dominik3
- European Commission. Directorate-General XII, Science, Research, and Development3
- Gao, David Wenzhong3
- Neill, Simon P.3
- Schlögl, Robert, 1954-3
- Tiwari, Ashutosh, 1978-3
- United States. Congress. House. Committee on Energy and Commerce. Subcommittee on Energy and Air Quality3
- United States. Congress. House. Committee on Science and Technology (2007)3