1. Solvent extraction of aromatic components from petroleum-derived fuels: a perspective review;Sharma;RSC Adv,2013
2. Clean fuel technology. http://www2.dupont.com/Clean_Technologies/en_US/assets/downloads/Hydrocarbon_Engineering_article_June_2009.pdf (accessed 08.02.16).
3. Association for Emissions Control by Catalyst, Response by AECC to European Commission Consultation on the need to reduce the Sulphur Content of Petrol & Diesel Fuels below 50 parts per million, July 2000, Affiliated with CEFIC.
4. Diesel Emission Control –Sulfur Effects (DECSE) Program Phase I- Interim Data Report No. 3. National Renewable Energy Laboratory (NREL), November 1999.
5. Comparative inhibiting effect of polycondensed aromatics and nitrogen compounds on the hydrodesulfurization of alkyldibenzothiophenes;Koltai;Appl Catal, A,2002