Journal article (2010) - SR Kantelhardt (author), W. Caarls (author), Wouter Caarls (author), W Caarls (author), AHB de Vries (author), GM Hagen (author), TM Jovin (author), W Schulz-Schaeffer (author), V Rohde (author), A Giese (author), D Arndt-jovin (author)