1. WEF. Global risks 2008—a global risk network report. World Economic Forum; 2008.
2. Normal accidents. Living with high-risk technologies;Perrow,1984
3. WEF. Global risks 2009—a global risk network report. World Economic Forum; 2009.
4. WEF. Global risks 2010—a global risk network report. World Economic Forum; 2010. p. 23.
5. The machine that changed the world : the story of lean production;Womack,1991