1. UGCT-UGent-Woodlab, Ghent University, Laboratory of Wood Technology, Department of Environment, Gent, Belgium
2. Royal Museum for Central Africa, Wood Biology Service, Tervuren, Belgium
3. Institut National pour l’Etude et la Recherche Agronomiques, Kinshasa, Democratic Republic of the Congo
4. Isotope Bioscience Laboratory – ISOFYS, Ghent University, Department of Green Chemistry and Technology, Gent, Belgium
5. Laboratory of Plant Ecology, Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Gent, Belgium