1. EPA, 2015. Phase 2 Greenhouse Gas Emissions Standards and Fuel Efficiency Standards for Medium- and Heavy-Duty Engines and Vehicles. Available from: http://www3.epa.gov/otaq/climate/refs-heavy-duty.htm.
2. EU, 2011. Commission Regulation (EU) No 582/2011 of 25 May 2011. Implementing and Amending Regulation (EC) No 595/2009 of the European Parliament and of the Council with Respect to Emissions from Heavy Duty vehicles (Euro VI) and Amending Annexes I and III to Directive 2007/46/EC of the European Parliament and of the Council Off. J. Eur, Union (L167/1).
3. EEA, 2016. EMEP/EEA Air Pollutant Emission Inventory Guidebook – 2016. http://www.eea.europa.eu//publications/emep-eea-guidebook-2106.
4. China-VI emission standards, 2017 (in Chinese) http://kjs.mep.gov.cn/hjbhbz/bzwb/dqhjbh/dqydywrwpfbz/201612/t20161223_369476.shtml.
5. Review of diesel emissions and control;Johnson;SAE Int. J. Fuels Lubricants,2010