1. Amir, S. (1994). The role of thermodynamics in the study of economic and ecological systems. Ecological Economics, 10, 125–142.
2. Baccini, P., & Brunner, P. H. (1991). Metabolism of the anthroposphere. Berlin: Springer.
3. Bijker, W. E., Hughes, T. P., & Pinch, T. (Eds.). (1987). The social construction of technological systems. Cambridge: The MIT Press.
4. Björkqvist, O. (1996). Perspectives on demand side energy efficiency. Gothenburg: Chalmers University of Technology, School of Mechanical and Vehicular Engineering.
5. Checkland, P. B. (1999). Systems thinking, systems practice. West Sussex: Wiley.