↑ Habermas, J. (2006). "the European Nation State - Its Achievments and Its Limits. On the Past and Future Sovereignty and Citizenship", in G. Balakrishan (ed.) Mapping the Nation. London: Vernon. 281 - 294
↑ Gowdy, John (2006) "Hunter-gatherers and the mythology of the market," in Richard B. Lee and Richard H. Daly (eds.), The Cambridge Encyclopedia of Hunters and Gatherers, pp.391-394. New York: Cambridge University Press
