1. Johannes Gutenberg University Mainz, Faculty of Social Sciences, Media and Sports, Department of Sport Economics, Sport Sociology and Sport History, Germany
2. University of Southern Denmark, Faculty of Business and Social Sciences, Department of Environmental and Business Economics Denmark
3. Mailing address: Grzegorz Kwiatkowski, University of Southern Denmark, 9 Niels Bohrs Street, 6700 Esbjerg, Denmark, tel.: +45 6550 1524, fax: +45 6550 1524, Denmark