1. How many Americans?: population, immigration and the environment;Bouvier,1994
2. Limits to growth: the 30-year update;Meadows,2004
3. Our common future. World commission on environment and development;United Nations,1987
4. The Rio declaration on environment and development;United Nations,1992
5. A review of multi-criteria decision-making methods for infrastructure management;Kabir;Struct Infrastruct Eng,2014