1. Clark III., A., 1987. Summary of biomass equations available for softwood and hardwood species in the southern United States. In: Estimating Tree Biomass Regressions and Their Error. USDA Forest Service, Northeastern Forest Experiment Station.
2. Hansen, M.H., Frieswyk, T., Glover, J.F., Kelly, J.F., 1992. The Eastwide Forest Inventory Data Base: Users Manual (General Technical Report GTR-NC-151). USDA Forest Service, North Central Forest Experiment Station.
3. Forest Ecosystems, Forest Management, and the Global Carbon Cycle, NATO Series Vol. I 40;Heath,1996
4. Koch, P., 1989. Estimates by Species Group and Region in the USA of: I. Below-ground Root Weight as a Percentage of Ovendry Complete-tree Weight; and II. Carbon Content of Tree Portions (Consulting Report to USDA Forest Service, available from R.A. Birdsey, USDA Forest Service, Northeast Forest Experiment Station, Newtown Square, PA).
5. The disposition of forest products in landfills;Micales;International Biodeterioration and Degradation,1997