1. Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, 22607 Hamburg, Germany
2. TUM School of Natural Sciences, Department of Physics, Chair for Functional Materials, Technical University of Munich, James-Franck-Str. 1, 85748 Garching, Germany
3. Department of Fibre and Polymer Technology, KTH Royal Institute of Technology, Teknikringen 56-58, SE-10044 Stockholm, Sweden
4. Wallenberg Wood Science Center (WWSC), KTH Royal Institute of Technology, Teknikringen 56-58, SE-10044 Stockholm, Sweden
5. Heinz Maier-Leibnitz-Zentrum (MLZ), Technical University of Munich, Lichtenbergstr. 1, 85748 Garching, Germany