1. Albert‐Ludwigs‐Universität Freiburg, Biometry and Environmental System Analysis Freiburg Germany
2. Forstliche Versuchs‐ und Forschungsanstalt Baden‐Württemberg Freiburg Germany
3. Geobotany Albert‐Ludwigs‐Universiät Freiburg Freiburg Germany
4. Department of Renewable Resources, Earth and Atmospheric Sciences Building University of Alberta Edmonton AB Canada
5. Chair of Silviculture Albert‐Ludwigs‐Universität Freiburg Freiburg Germany