1. Paradise Lost? The Ecological Economics of Biodiversity;Barbier,1994
2. The economics of the coming spaceship earth;Boulding,1966
3. Modeling the dynamics of the integrated earth system and the value of global ecosystem services using the GUMBO model;Boumans;Ecological Economics,2002
4. Ecological Economics: The Science and Management of Sustainability,1991
5. Visions of alternative (unpredictable) futures and their use in policy analysis;Costanza;Conservation Ecology,2000