INTERGOVERNMENTAL PANEL ON CLIMATE CHANGE. Summary for policymakers: climate change 2001: impacts, adaptation, and vulnerability: a report of working group II of the IPCC. Geneva, 2001b. 17 p.

INTERGOVERNMENTAL PANEL ON CLIMATE CHANGE. Summary for policymakers of the IPCC WG III third assessment report. Ghana, 2001c. 17 p.

PHILANDER, S. G. Is the temperature rising? Princeton: Princeton University Press, 1998. 262 p.

SYMPOSIUM BY THE AMERICAN SOCIETY OF AGRONOMY, 1992, Minneapolis.

Climate change and agriculture: analysis of potential international impacts: proceedings. Madison: American Society of Agronomy, 1995. 382 p.