1. USEPA, United States Environmental Protection Agency, National Ambient Air Quality Standards web page, http://www.epa.gov/ttn/naaqs/, 2004 (visited June 25, 2004).
2. Wind as a Geological Process on Earth, Mars, Venus and Titan;Greeley,1985
3. Aeolian Dusts and Deposits;Pye,1987
4. Desert Geomorphology;Cooke,1993
5. Sediment Transport and Depositional Processes,1994