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2. U.S. Environmental Protection Agency Report to Congress on Server and Data Center Energy Efficiency (2007).
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4. International Technology Roadmap for Semiconductors 2009 Edition Executive Summary; www.itrs.net/Links/2009ITRS/Home2009.htm.
5. Mistry K., et al.., IEEE IEDM 2007 Tech. Digest, 10.2 (2007).