1. Global variation in terrestrial conservation costs, conservation benefits, and unmet conservation needs;Balmford;PNAS,2003
2. Who should pay for tropical conservation, and how could the costs be met?;Balmford;Oryx,2003
3. Downgrading, downsizing, degazettement, and reclassification of protected areas in Brazil;Bernard;Conserv. Biol.,2014
4. Bovarnick , A. J. Fernandez Baca J. Galindo H. Negret 2010 Financial Sustainability of Protected Areas in Latin America and the Caribbean: Investment Policy Guidance http://www.undp.org/content/undp/en/home/librarypage/environment-energy/ecosystems_and_biodiversity/financial-sustainability-of-protected-areas-in-latin-america-and-the-caribbean.html
5. Bragança , D. 2013 “O passivo fundiário é só a ponta do iceberg”, afirma Vizentin http://www.oeco.org.br/reportagens/27548-o-passivo-fundiario-e-so-a-ponta-do-iceberg-afirma-vizentin/