Max-Planck-Institute for Dynamics and Self-Organization, Göttingen, Germany.|Max-Planck-Institute for Dynamics and Self-Organization, Göttingen, Germany.|Max-Planck-Institute for Dynamics and Self-Organization, Göttingen, Germany.|Max-Planck-Institute for Dynamics and Self-Organization, Göttingen, Germany.|Max-Planck-Institute for Dynamics and Self-Organization, Göttingen, Germany.|Max-Planck-Institute for Dynamics and Self-Organization, Göttingen, Germany.|Max-Planck-Institute for Dynamics and Self-Organization, Göttingen, Germany.