References
- Darwin, C. (1968). The Origin of Species by means of natural selection or the preservation of favoured races in the struggle for life ed. J.W. Burrow, Penguin Books, England. First published in 1859.
- Lovejoy, A.O. and Boas, G. (1997). Primitivism and Related Ideas in Antiquity. London: The John Hopkins University Press.
- Nielsen, L.W. (2004). Naturlighed I lyset af den genteknologiske udvikling (English title: The Concept of Nature and the ethical debate on new biotechnologies applied on the non-human nature, Chapter 1. Unpublished PhD thesis, Centre for Ethics and Law, Copenhagen.
- Schwarz, M. (1990). Divided we stand: redefining politics, technology and social choice. Harvester Wheatsheaf.