1. The rapid increase of motor vehicles and drivers in 2015;Shen;Auto Saf,2016
2. Liu J. China has at least 150 million motor vehicles with the consumption of 230 million tons of oil in 2015. Guangzhou Daily. April 19. Available at: 〈http://www.chinanews.com/auto/2011/04-19/2981425.shtml〉; 2015 [ accessed 10.12.15].
3. Qian X, Jiang X. The 2015 overview and 2016 outlook of the oil and gas industry. askci.com. January 26. Available at: 〈http://www.askci.com/news/chanye/2016/01/26/1214f4oc.shtml〉; January 26, 2016 [accessed 12.06.16].
4. Ministry of Environmental Protection. China Vehicle Emission Control Annual Report 2015. Beijing; 2016.
5. National Development and Reform Commission. National plan on climate change for 2014–2020 No.Fagaiqihou[2014]2347. Beijing; 2014.