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2Stewart Patrick, "The G20 and the United States: Opportuni- ties for More Effective Multilateralism", A Century Foundation Report, December 28, 2010, pp. 24-29.
3Leonardo Martinez-Diaz, "The G20 "after Eight Years : How Ef- fective a Vehicle for Developing Country Influence?" Global Economy and Development Working Paper, No. 12, The Brookings Institution, October 2007, p. 17.
4Agnes Benassy-Quere, Rajiv Kumar, and Jean Pisan-Ferry, "The G20 Is Not Just A G7 with Extra Chairs", BRUEGEL Policy Con- tribution, ISSUE 2009/10, September 2009, pp. 2-8 ; Kirton, John and Madeline Koch, eds. , G8 & G20: The 2010 Canadian Summits, Lon- don: Newsdesk, 2010, pp. 306-307.