1. Chinese Association of Automobile Manufacturers (2015) Passenger cars drove overall growth in 2014, http://www.caam.org.cn/AutomotivesStatistics/20150114/0905144505.html , accessed on Feb. 11, 2015
2. The Economist (2015) Urbanization: the great sprawl of China, Jan. 24th Issue: 37–38
3. National Bureau of Statistics of China (2014) China Statistical Yearbook 2014. China Statistics Press, Beijing
4. Pei S (2014) China plans to finish development of state 6 vehicle emission standards by 2015, http://auto.sina.com.cn/news/2014-09-07/10111329845.shtml
5. The State Council (China) (2012) Development plan of the energy conservation vehicles and new energy vehicles: 2012–2020 (in Chinese), Beijing, China