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German Journal of Exercise and Sport Research > 2018 > 48 > 2 > 287-292
Berliner Journal für Soziologie > 2009 > 19 > 3 > 409-434
German Journal of Exercise and Sport Research > 2018 > 48 > 2 > 287-292
Berliner Journal für Soziologie > 2009 > 19 > 3 > 409-434