1. Chaire industrielle CRSNG–UQAT–UQAM en aménagement forestier durable, Université du Québec en Abitibi–Témiscamingue (UQAT), 445 boulevard de l’Université, Rouyn–Noranda, QC J9X 5E4, Canada.
2. Swedish University of Agricultural Sciences, Southern Swedish Forest Research Centre, P.O. Box 49, SE-230 53 Alnarp, Sweden.
3. Department of Forest Ecology, University of Helsinki, P.O. Box 24, FIN-00014, Helsinki, Finland.