1. Allwood, J. M., & Cullen, J. M. (2012). Sustainable materials: With both eyes open. Cambridge: UIT Cambridge.
2. Allwood, J. M., Cullen, J. M., & Milford, R. L. (2010). Options for achieving a 50 % cut in industrial carbon emissions by 2050. Environmental Science & Technology, 44, 1888–1894.
3. Angel, S., Parent, J., Civco, D., Blei, A., & Potere, D. (2010). A planet of cities: Urban land cover estimates and projections for all countries, 2000–2050 (Lincoln Institute of Land Policy Working Paper). New York: Lincoln Institute of Land Policy.
4. Ayres, R. U. (1989). Industrial metabolism. In J. H. Ausubel & H. E. Sladovich (Eds.), Technology and environment (pp. 23–49). Washington, DC: National Academy of Engineering.
5. Baccini, P., & Bader, H. P. (1996). Regionaler Stoffhaushalt. Erfassung, Bewertung und Steuerung. Heidelberg: Spektrum Akademischer Verlag.