1. Wood Technology and Wood Chemistry; Georg-August-University of Göttingen; 37077 Göttingen Germany
2. Third Institute of Physics-Biophysics; Georg-August-University of Göttingen; 37077 Göttingen Germany
3. NMR-based Structural Biology; Max-Planck-Institute for Biophysical Chemistry; 37077 Göttingen Germany
4. School of Physics; University of Electronic Science and Technology of China; 610054 Chengdu China