1. Battles, S., Hojjati, B., 2005. Two decades of household energy trends from indicators: a look at the underlying factors. Report, Energy Information Agency, US Department of Energy. (accessed 25.04.06).
2. Shelf-life determination and challenge testing;Betts,2000
3. Davis, S., McFarlin, D., 1996. Transportation Energy Data Book: Edition 16. Report ORNL-6898. ORNL, US Department of Energy, Washington, DC.
4. Transportation Energy Data Book: Edition 25;Davis,2006
5. A framework for an integrative freight market simulation;Holguin-Veras,2000