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Sources

• Ohnsman, Alan. "Analysts see dip in U.S. hybrid sales after record year in 2007." Bloomberg News. Jan. 5, 2008 (Mar. 28, 2008).
  http://www.canada.com/ottawacitizen/news/business/
  story.html?id=6ab44793-daa8-4e8d-ba8c-e0fe2a5fbbd5
• Wallace, James. "Introducing … Boeing's electric 7E7." The Seattle Post-Intelligencer. May 20, 2004 (Mar. 28, 2008).
  http://seattlepi.nwsource.com/business/174159_electric20.html
• "Air Force One." Boeing. (Mar. 28, 2008).
  http://www.boeing.com/defense-space/military/af1/
• "Bush, touting his energy plan, promotes alternative fuels." Associated Press. Jan. 24, 2008 (Mar. 28, 2008).
  http://www.iht.com/articles/ap/2007/01/24/america/
  NA-GEN-US-Bush-Energy.php
• "State of the Union Address." The White House. Jan. 28, 2008 (Mar. 28, 2008).
  http://www.whitehouse.gov/news/releases/2008/01/20080128-13.html
• "VC-25 -- Air Force One." U.S. Government factsheet. (Mar. 27, 2008).
  http://www.af.mil/factsheets/factsheet.asp?fsID=131
• "787 Dreamliner." Boeing. (Mar. 28, 2008).
  http://www.boeing.com/commercial/787family/background.html