1. Abel, T. 2000 The Complex Systems Dynamics of a Development Frontier: The Case of Eco-Tourism on the Island of Bonaire, Netherlands Antilles. PhD dissertation in anthropology, University of Florida.
2. 1999 International Ecosystem Assessment;Ayensu;Science,1999
3. Linking Social and Ecological Systems: Management Practices and Social Mechanisms for Building Resilience,1998
4. Discordant Harmonies: A New Ecology for the Twenty-First-Century;Botkin,1990
5. Sustainable Tourism: An Evolving Approach;Bramwell;Journal of Sustainable Tourism,1993