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Interaktive CD-ROM zur Karte der natürlichen Vegetation Europas / Interactive CD-Rom Map of the Natural Vegetation of Europe

U. Bohn, G. Gollub, T. Raus, 2004 .

Karte der natürlichen Vegetation Europas / Map of the Natural Vegetation of Europe - Maßstab / Scale 1:2,500,000

Thomas Raus, Udo Bohn, Gisela Gollub, 2000 .

Global ecological zoning for the Global Forest Resources Assessment 2000 - Final report

P. Tickle, A. Shvidenko, Zhiliang Zhu, 2001 .