1. Adriaanse, A. (1993). Environmental policy performance indicators: A study on the development of indicators for environmental policy in the Netherlands. The Hague: SDU.
2. Arrow, K., Bolin, B., Costanza, R., Dasgupta, P., Folke, C., Holling, C.S., Jansson, B-O., Levin, S., Mäler, K-G., Perrings, Ch., & Pimentel, D. (1995). Economic growth, carrying capacity, and the environment. Science, 268, 520–521.
3. Bell, S., & Morse, S. (2003). Measuring sustainability. Learning by doing. London: Earthscan.
4. Bergh, J. C. J. M. van den, Boserup, E. (1981). Population and technological change. A study of long-term trends. Chicago: University of Chicago Press.
5. Brimblecombe, P., & Pfister, C. (Eds.). (1990). The silent countdown: Essays in European environmental history. Berlin: Springer.