Searchinger, Timothy D., Steven P. Hamburg, Jerry Melillo, William Chameides, Petr Havlik, Daniel M. Kammen, Gene E. Likens, et al. 2010. “ Bioenergy: Counting on Incentives—Response ”. Science 327 (5970): 1200-1201. doi:10.1126/science.327.5970.1200-a.

Searchinger, Timothy D., Steven P. Hamburg, Jerry Melillo, William Chameides, Petr Havlik, Daniel M. Kammen, Gene E. Likens, et al. 2010. “ Carbon Calculations to Consider—Response ”. Science 327 (5967): 781. doi:10.1126/science.327.5967.781-a.