@conference {12893,
	title = {Self-organizing maps - A helpful tool in clustering areas with similar factors of erosion risk.},
	booktitle = {6th Pan-Hellenic Geographical Congress of the Hellenic Geographical Society},
	year = {2002},
	author = {Bartkowiak, A. and Gournellos, Th. and Evelpidou, N. and Vassilopoulos, A.}
}
