Fales, Steven L., J. Richard Hess, y W. W. Wilhelm. «Convergence of Agriculture and Energy: II. Producing Cellulosic Biomass for Biofuels». Council for Agricultural Science and Technology (CAST) (noviembre 5, 2007): 8. Accedido enero 11, 2026. https://publications.cast-science.org/CAST/article/view/25.