1. S. Daniel, K. Achim, S. Peter, F. Jan, D. Arndt, SAE Tech. Pap., 2011. http://dx.doi.org/10.4271/2011-01-0143 (2011-01-0143).
2. Exhaust nanoparticle emissions from internal combustion engines: A review
3. DieselNet, Emission Standards European Union, Cars and Light Trucks. , 2014 (05.01.14).
4. A. Mamakos, G. Martini, P. Dilara, Y. Drossinos, Feasibility of Introducing Particulate Filters on Gasoline Direct Injection Vehicles, JRC Scientific and Policy Report, JRC68675, EUR 25297 EN, EU Commission, 2011, http://dx.doi.org/10.2788/23375.