10 Hill, J. Hutchinson, C.F. Reynolds, J. Safriel, U. Scholes, R.J. Sommer, S. von Maltitz, G. Verstraete, M. Vogt, J. 2009 Integrated Methods for Monitoring and Assessing Desertification/Land Degradation Processes and Drivers United Nations Convention to Combat Desertification, Conference of the Parties Buenos Aires