1. EPA-Diesel-RIA, Regulatory impact analysis; Heavy-duty engine and vehicle standards and highway diesel fuel sulfur control requirements. US EPA, Air and Radiation EPA 420-R-00-026, December 2000.
2. EPA-Gasoline-RIA; Regulatory impact analysis; Control of air pollution from new motor vehicles: Tier 2 motor vehicle emissions standards and gasoline sulfur control requirements, US EPA, Air and Radiation EPA 420-R-99-023, December 1999.
3. R.E. Palmer, G. Ripperger, J. Migliavacca, Revamp Your Hydrotreater to Manufacture Ultra Low Sulfur Diesel, NPRA 2001 Annual Meeting (AM-01-022).
4. New design approaches to ultra-clean diesel fuels by deep desulfurization and deep dearomatization
5. An overview of new approaches to deep desulfurization for ultra-clean gasoline, diesel fuel and jet fuel