1. Emission Rates and Comparative Chemical Composition from Selected In-Use Diesel and Gasoline-Fueled Vehicles, Barbara Zielinska, 2012
2. Gasoline cars produce more carbonaceous particulate matter than modern filter-equipped diesel cars, S. M. Platt& I. El Haddad, 2017
3. A comprehensive review on hybrid electric vehicles: architectures and components, Krishna Veer Singh, Hari Om Bansal & Dheerendra Singh, 2019
4. V. Mitchell, A New Era for Oil Prices, Chatham House (Royal Institute of International Affairs), London, 2006, 32 pp.
5. K. Bennion and M. Thornton, Fuel Savings from Hybrid Electric Vehicles, Technical Report NREL/TP-540-42681, March 2009