1. Engineering Sciences, Uppsala University, Sweden
2. ABB Corporate Research, Sweden
3. ABB Corporate Research, Vasteras, Sweden
4. Electrical Engineering and Computer Science, KTH Royal Institute of Technology, Stockholm, Sweden
5. Signals and Systems, Uppsala University, Sweden
6. Maintenance Technology Development, Iggesund Paperboard, Sweden
7. Decision and Control Systems, KTH Royal Institute of Technology, Stockholm, Sweden