1. Adkinson, G.P., 1991. Ecological Impacts of Trail Use in Three Indiana Nature Preserves. M.Sc. thesis, The School of Graduate Studies, Department of Life Sciences, Indiana State University, Terre Haute, IN, USA.
2. Modeling mineral aerosol production by wind erosion: emission intensities and aerosol distributions in source areas;Alfaro;Journal of Geophysical Research,2001
3. American Fisheries Society. 2002. Off-Road Vehicles and Their Impact on Stream Environments: a Policy Statement From the Texas Chapter of the American Fisheries Society Texas Chapter of the American Fisheries Society (TCAFS). http://www.sdafs.org/tcafs/content/orvpol.htm.
4. Mt. Blue Experimental ATV Trail;Anderson,1990
5. Impacts of off-road vehicles on nitrogen cycles in biological soil crusts: resistance in different U.S. deserts;Belnap;Journal of Arid Environments,2002