1. Armstrong, A. H. BSOS-Geography, 2181 LeFrak Hall University of Maryland, College Park, MD 20742-8225
2. Shugart, H. H. Department of Environmental Sciences, Clark Hall, University of Virginia, 291 McCormick Road Charlottesville, VA 22902
3. Fatoyinbo, T. E. Biospheric Sciences Branch, NASA Goddard Space Flight Center, 8800 Greenbelt Road, Greenbelt, MD 20771 USA