Natural Capital Project. Stanford University's Woods Institute for the Environment, University of Minnesota's Institute on the Environment, The Nature Conservancy, and World Wildlife Fund.
Campbell, A., Dickson, B., Gibbs, H., Hansen, M., Kapos, V., Lysenko, I., Miles, L. Scharlemann, J. 2009. The Role of Protected Areas in Storing Carbon and Reducing Emissions. IOP Conf. Series: Earth and Environmental Science 6.
Sherman, A. 2003. Conservation Finance e-Resources. A Compendium of Examples for Self-Sustaining Projects to Protect Wildlife and the Environment. Washington, D.C.: WWF Center for Conservation Finance.
Flores, M., G. Rivero, F. León, G. Chan, et al. 2008. Financial Planning for National Systems of Protected Areas: Guidelines and Early Lessons. Arlington, VA: The Nature Conservancy
