China's ex-security chief helping probe, not target: sources
媒体：周永康未被“双规" ，仅协助调查
Reuters, September 4, 2013
Deutsche Welle, September 5, 2013
EN:http://www.reuters.com/article/2013/09/04/us-china-politics-idUSBRE9830D220130904
CH:http://bit.ly/19lGVvt
中石油在美国遭股东集体诉讼 (PetroChina sued by shareholders class action in U.S.)
Nikkei, September 5, 2013
http://cn.nikkei.com/china/ccompany/6474-20130905.html
杨达才一审获刑14年 (Former official sentenced to 14 years for taking bribes)
Beijing News, September 5, 2013
http://www.bjnews.com.cn/news/2013/09/05/281981.html