1. Forest Soils and Biogeochemistry Swiss Federal Institute for Forest, Snow and Landscape Research (WSL) Birmensdorf Switzerland
2. Forest Ecology, Institute of Terrestrial Ecosystems (ITES) ETH Zurich Zurich Switzerland
3. Institute of Forest Ecology, Department of Forest and Soil Sciences University of Natural Resources and Life Sciences (BOKU) Vienna Austria
4. Forest Resources and Management Swiss Federal Institute for Forest, Snow and Landscape Research (WSL) Birmensdorf Switzerland
5. Exponent, Inc. Bellevue Washington USA
6. Forest Dynamics Swiss Federal Institute for Forest, Snow and Landscape Research (WSL) Birmensdorf Switzerland