1. Alakangas E, Paju P (2002) Wood Pellets in Finland - Technology, Economy and Market. Opet Report 5. Jyväskyla, VTT Processes, 64 pp + app. 24 pp
2. Andersson G, Asikainen A, Björheden R, Hall PW, Hudson JB, Jirjis R, Mead DJ, Nurmi J, Weetman GF (2002) Production of forest energy. In: Richardson J, Björheden R, Hakkila P, Lowe AT, Smith CT (eds) Bioenergy from Sustainable Forestry. Guiding Principles and Practice. Kluwer Academic Publishers. 344 pp
3. Asikainen A, Löytömäki J, Ala-Muka H, Bumanis K, Gedrovics M, Heiskanen VP, Kojo R, Simula M, Tuherm H (2001a) Sawdust and Wood Waste Strategy for Latvia. 1st World Conference on Biomass for Energy and Industry, Sevilla, Spain, 5-9 June 2000, pp 1285-1288
4. Asikainen A, Ranta T, Laitila J, Hämäläinen J (2001b) Cost factors and large scale procurement of logging residue chips. University of Joensuu, Faculty of Forestry, Research Notes 131, 107 pp
5. Berndes G (2001) Biomass in the energy system resource requirements and competition for land. Diss: Department of Physical Resource Theory, Chalmers University of Technology and Gothenburg University, Gothenburg, 150 pp