1. Department of Sport Business Administration, Institute of Sport Economics and Sport Management, German Sport University Cologne, Cologne, Germany
2. Institute for Management, University of Koblenz, Koblenz, Germany
3. Institute of European Sport Development and Leisure Studies, German Sport University Cologne, Cologne, Germany
4. Faculty of Management and Social Sciences, University of Applied Sciences Koblenz, Remagen, Germany
5. European Network of Sport Education, Vienna, Austria
6. National University of Physical Education and Sports, Bucharest, Romania