1. Abel, T. (2011). Culture in information cycles: Energy, information, and system self-organization of H.T. Odum revisited. In Proceedings of the 6th emergy conference. Gainesville, Florida: Center for Environmental Policy, University of Florida.
2. Altieri, M. (1999). Applying agroecology to enhance the productivity of peasant farming systems in Latin America. Environment, Development and Sustainability, 1, 197–217.
3. Assis, W. F. T., & Zucarelli, M. C. (2007). Despoluindo Incertezas: impactos territoriais da expansão de agrocombustíveis e perspectivas para uma produção sustentável. Belo Horizonte, MG: Editora e Gráfica O Lutador.
4. Beeharry, R. P. (2001). Carbon balance of sugarcane bioenergy systems. Biomass and Bioenergy, 20, 361–370.
5. Bergquist, D. A. (2008). Colonised coasts. Aquaculture and emergy flows in the world system: Cases from Sri Lanka and the Philippines. Doctoral thesis, Geografiska Regionstudier, 77. Uppsala, Sweden: Department of Social and Economic Geography, Uppsala University.