1. The Future of Sustainability: Re-thinking Environment and Development in the Twenty-first Century;Adams,2006
2. The poverty of sustainability: An analysis of current discourse;Allen;Agriculture and Human Values,1992
3. On the practical limits to substitution;Ayres;Ecological Economics,2007
4. Sustainable development: Is it a useful concept?;Beckerman;Environmental Values,1994
5. Intrinsic value in nature: A metaphysical analysis. Pages 239–261 in Callicott JB, ed. Beyond the Land Ethic;Callicott,1999