1. Max Planck Institute for Polymer Research, Ackermannweg 10, D-55128 Mainz, Germany
2. Leibniz-Institut für Polymerforschung, Hohe Straße 6, D-01069 Dresden, Germany
3. Department of Physics, Technical University of Denmark, DTU Physics Building 309, DK-2800 Kongens Lyngby, Denmark
4. Institute of Fluid Mechanics and Aerodynamics, Bundeswehr University Munich, D-85577 Neubiberg, Germany