Conference on Recent Shifts in Vegetation Boundaries of Deciduous Forests, Especially Due to General Global Warming Frank Klötzli, Gian-Reto Walther E-Book (pdf)

Erich Kessler, Frank Klötzli und Bernhard Nievergelt Richard Maurer, Mario F. Broggi E-Book (pdf)

Global Vegetation Jörg S. Pfadenhauer, Frank A. Klötzli E-Book (pdf)