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2. Test of observer variability in measuring riparian shrub twig length;Hall;Journal of Range Management,1999
3. Utilization studies and residual measurements;USDI, Bureau of Land Management,1996
4. Growth form method for describing browse condition;Keigley;Rangelands,1997
5. Process to monitor and manage ungulate browsing pressure;Keigley;Natural Resource and Environmental Issues,2011