Ryan, Michael G.; Harmon, Mark E.; Birdsey, Richard A.; Giardina, Christian P.; Heath, Linda S.; Houghton, Richard A.; Jackson, Robert B.; McKinley, Duncan C.; Morrison, James F.; Murray, Brian C.; Pataki, Diane E.; Skog, Kenneth E. 2010. A synthesis of the science on forests and carbon for U.S. forests. Issues in Ecology. Washington, DC: Ecological Society of America. Spring(13): 1-16.