1. U.S. Environmental Protection Agency: Office of Transportation and Air Quality. Regulatory Announcement: Heavy-Duty Engine and Vehicle Standards and Highway Diesel Fuel Sulfur Control Requirements, EPA420-F-00-057, December 2000.
2. U.S. Environmental Protection Agency: Office of Transportation and Air Quality. Heavy-Duty Standards/Diesel Fuel RIA: Emission Standards Feasibility, EPA420-R-00-026, December 2000 (Chapter III).
3. W. Held, A. Koenig, German Offen. DE 3,642,018 (1987).
4. Y. Fujitani, H. Muraki, A. Nagoya, S. Kondoh, M. Fukui, A. Toyoake, German Offen. DE 3,735,151 (1988).
5. J. Parks, B. Epling, A. Watson, G. Campbell, Durability of NOx Adsorbers, Presentation given at the 8th Diesel Engine Emissions Reduction Conference, US DOE FreedomCAR and Vehicle Technologies, San Diego, CA, 25–29 August 2002.