China pollution: Survey finds 70% of firms break regulations
British Broadcasting Corporation, June 11, 2017
http://www.bbc.com/news/world-asia-china-40239693
China upholds life sentence for corrupt former official
South China Morning Post, June 10, 2017
http://www.scmp.com/news/china/economy/article/2097785/china-upholds-life-sentence-corrupt-former-official
郭文贵案进入司法程序 (Judicial proceedings begin for case of Guo Wengui)
Deutsche Welle, June 10, 2017
http://www.dw.com/zh/郭文贵案进入司法程序/a-39191457