1. Discrete-event system simulation;Banks,1984
2. Police state wilderness: a comment on mandatory wilderness permits;Behan;Journal of Forestry,1974
3. Rationing wilderness use: an example from Grand Canyon;Behan;Western Wildlands,1976
4. Simulating the effects of Glen Canyon Dam releases on Grand Canyon River trips;Borkan;Environmental Management,1989
5. Borrie, W., Freimund, W., Davenport, M., Manning, R., Valliere, W., Wang, B., 1999. Winter Visitor and visitor characteristics of Yellowstone National Park. Unpublished report. University of Montana, Missoula.