Vreugdenhil, D., Terborgh, J., Cleef, A. M., Sinitsyn, M., Boere, G. C., Archaga,
V. L., and Prins, H. H. T. (2003). Comprehensive protected areas system composition
and monitoring, World Institute for Conservation and Environment. https://portals.iucn.org/library/sites/library/files/documents/2003-031.pdf
