List of Chinese leaders:

Central Intelligence Agency, The World Factbook: China

https://www.cia.gov/library/publications/world-leaders-1/world-leaders-c/china.html

Profiles:

http://www.cnn.com/2013/03/04/world/asia/xi-jinping-profile/index.html

China's Leadership Scandal, 2012:

Barbara Demick, "In China, 'red nobility' trumps egalitarian ideals"  Los Angeles Times, March 4, 2013

http://articles.latimes.com/2013/mar/04/world/la-fg-china-princelings-20130305

Michael Wines, "In Rise and Fall of China's Bo Xilai, An Arc of Ruthlessness" New York Times, May 6, 2012

http://www.nytimes.com/2012/05/07/world/asia/in-rise-and-fall-of-chinas-bo-xilai-a-ruthless-arc.html?pagewanted=all