Institution: | 1. Department of Forest Sciences, Viikki Tropical Resources Institute, University of Helsinki, Latakartanonkarri 7, P.O. Box 27, 00014, Helsinki, Finland 2. Wondo Genet College of Forestry and Natural Resources, Hawassa University, P.O. Box 128, Shashemene, Ethiopia 3. Department of Forest Sciences, University of Helsinki, Latokartanonkaari 7, P.O. Box 27, 00014, Helsinki, Finland
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