1. Polymer Competence Center Leoben, Leoben, Austria
2. Insitute of Physics, Montanuniversität Leoben, Leoben, Austria
3. Christian Doppler Laboratory for Fiber Swelling, Graz University of Technology, Graz, Austria
4. Institute of Bioproducts and Paper Technology, Graz University of Technology, Graz, Austria
5. Materials Science and Testing of Polymers, Montanuniversität Leoben, Leoben, Austria