1. National Research Council (1999) Our Common Journey (Natl. Acad. Press, Washington, DC).
2. United Nations Conference on Human Settlements (1996) Report of the United Nations Conference on Human Settlements (United Nations, Istanbul, Turkey), A/CONF. 165/14.
3. United Nations (1992) United Nations Framework Convention on Climate Change (United Nations, Rio de Janeiro, Brazil).
4. United Nations Conference on Environment and Development (1992) Report of the United Nations Conference on Environment and Development (United Nations, Rio de Janeiro, Brazil), A/CONF. 151/26.
5. United Nations General Assembly (2000) United Nations Millennium Declaration (United Nations, New York), A/RES/55/2.