http://news.bbc.co.uk/2/hi/asia-pacific/7088718.stm
https://www.scmp.com/article/615222/three-die-stampede-over-cheap-cooking-oil
https://www.reuters.com/article/us-china-stampede-idUSL108439020071110
https://www.chinadaily.com.cn/china/2007-11/10/content_6245445.htm