Japanese Society of Science and Football 6 D. Bjelica 3 S. Akpinar 3 S. Popovic 3 B. De Geus 2 B. Roelands 2 E. Tsolakidis 2 J. Avela 2 J. Duchateau 2 J. Kallio 2 J. Komulainen 2 M. Klass 2 P. V. Komi 2 R. Meeusen 2 S. Baudry 2 S. Jenkins 2 Bund deutscher Fussball-Lehrer 1 ICSEMIS Organizing Committee 1 International Centre for Sports Studies (CIES) 1 J. Bangsbo 1 P. Krustrup 1 Potsdam, Universität Potsdam 1