Montana State University, 334 Leon Johnson Hall, Bozeman, MT 59717, United States
Montana State University, 334 Leon Johnson Hall, Bozeman, MT 59717, United States
Penn State University,, Civil Environmental Engineering Department, 212 Sackett Bldg., University Park, PA 16802, United States
U.S. Forest Service, Pacific Northwest Research Station Olympia Forestry Sciences Lab, Olympia, WA 98512, United States ; Colorado School of Mines, Department of Geology and Geological Engineering, Golden, CO 80401, United States
U.S. Forest Service, Pacific Northwest Research Station Olympia Forestry Sciences Lab, Olympia, WA 98512, United States