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2. Understanding felling safety in the New Zealand forest industry;Bentley;Applied Ergonomics,2005
3. Residual stand damage from cut-to-length thinning of second-growth timber in the Cascade Range of western Oregon;Bettinger;Forest Products Journal,1993
4. The domesticated Asian elephant in India;Bist,2002
5. Logging, the principles and general methods of operation in the United States;Bryant,1923