1. Adelman MA (1993) The economics of petroleum supply. The MIT Press, Cambridge, MA
2. Alley R, Marotzke J, Nordhaus W et al (2003) Abrupt climate change. Science 299:2005–2010
3. Axelrod R (1976) The structure of decision: the cognitive maps of political elites. Princeton University Press, Princeton, NJ
4. Bahn P, Flenley J (1992) Easter Island, Earth Island. Thames and Hudson, London, UK
5. Bäumer D, Vogel B (2007) An unexpected pattern of distinct weekly periodicities in climatological variables in Germany. Geophy Res Lett 34:L03819