1. The Climate Corporation; 4 Cityplace Dr St. Louis MO USA
2. Center for Forested Wetlands Research; USDA-Forest Service; 3734 Hwy 402 Cordesville SC 29434 USA
3. University of Georgia; 597 D. W. Brooks Drive Athens GA 30602 USA
4. Biological and Agricultural Engineering Department; North Carolina State University; Campus Box 7625 Raleigh NC USA
5. Weyerhaeuser Company; P.O. Box 2288 Columbus MS 39704-2288 USA