1. University of Applied Forest Sciences Rottenburg Schadenweilerhof 72108 Rottenburg am Neckar Germany
2. Technology and Support Centre in the Centre of Excellence for Renewable Ressources Schulgasse 18 94315 Straubing Germany
3. APC analytics GmbH Daimlerstraße 17 61449 Steinbach Germany
4. University Tübingen Schnarrenbergstraße 94–96 72076 Tübingen Germany