1. Alexanderson H (1986) A homogeneity test applied to precipitation data. J Climatol 6:661–675
2. Anagnostopoulou C (2003) A contribution of drought analysis in Greece. Ph.D. dissertation, Aristotle University of Thessaloniki, Thessaloniki, 215pp
3. Giorgi F (1995) Perspectives for regional earth system modelling. Global Planet Change 10:23–43
4. Hayes M (1999) Drought indices, National Drought Mitigation Center. (Available on line:
http://www.civil.utah.edu/~cv5450/swsi/indices.htm#deciles
5. IPCC (2007) IPCC fourth assessment report: climate change 2007. Working group I report, “the physical science basis”, Chapter 11 “Regional climate projections”. pp 847–940