1. VTT, Technical Research Centre of Finland,
Bio and Process Technology,
Tietotie 2, P.O. Box 1000, FIN-02044 VTT, Finland
2. Department of Applied
Physics, Aalto University School of Science and Technology, P.O. Box 15100, FI-00076 Aalto, Finland
3. VTT, Technical Research
Centre of Finland, Energy and Pulp and Paper,
Biologinkuja 7, P.O. Box 1000, FIN-02044 VTT, Finland