1. Die Alpen. Geschichte und Zukunft einer europäischen Kulturlandschaft;Bätzing,2003
2. Vegetation Ecology of Central Europe;Ellenberg,1988
3. The impact of vertebrate grazers on vegetation in European high mountains;Erschbamer,2003
4. Plant diversity along altitudinal gradients in the Southern and Central Alps of South Tyrol and Trentino Italy;Erschbamer;Gredleriana,2006
5. The high-mountain ecosystems of the Alps;Grabherr,1996