1. Biological and Agricultural Engineering, Chemical Engineering, University of California at Davis, Davis, CA 95616-8722, USA
2. Vireo Advisors, LLC, PO Box 51368, Boston, MA, 02130, USA
3. Environmental Science, Baylor University, Waco, TX 76798-7266, USA
4. USDA Forest Service, Forest Products Laboratory, Madison, WI 53726-2398, USA