13.
Clark W.C., Crutzen P.J., Schellnhuber H.J. (2004), Science for Global Sustainability: Towards New Paradigm, w: H.J. Schellnhuber, P.J Crutzen, W.C. Clark, M. Claussen, H. Held (red.), Earth System Analysis for Sustainability, Massachusetts Institute of Technology – Freie Universität Berlin, Cambridge, MA, The MIT Press.