1. Forest Engineering Department, Faculty of Forestry, Kahramanmaraş Sütçü İmam University, 46100 Kahramanmaraş, Turkey
2. Department of Forest Engineering, College of Forestry, Oregon State University, Corvallis, OR 97331
3. Daniel B. Warnell School of Forest Resources, University of Georgia, Athens, GA 30602
4. USDA Forest Service Pacific Northwest Region, Portland, OR 97208
5. Department of Forest Engineering, College of Forestry, Oregon State University, Corvallis, OR 77331