1. Institute of Solid State Physics and NAWI Graz; Graz University of Technology; Graz Austria
2. Christian Doppler Laboratory for Mass Transport through Paper; Graz University of Technology; Graz Austria
3. Institute of Stochastics; Ulm University; Ulm Germany
4. Institute for Paper, Pulp, and Fiber Technology; Graz University of Technology; Graz Austria