Towards the Sustainable Use of Europe's Forests - Forest Ecosystem and Landscape Research : scientific Challenges and Opportunities. Eds. Folke Andersson, Yves Birot, Risto Päivinen. Joensuu : European Forest Intitute, 2004. 322 s. EFI Proceedings, No. 49, 2004. ISBN 952-5453-00-6. ISSN 1237-8801.