Polish Journal of Sport and Tourism
Polish Journal of Sport and Tourism > 2013 > 20 > 2 > 95-99
Polish Journal of Sport and Tourism > 2015 > 21 > 2 > 119-126
Polish Journal of Sport and Tourism > 2013 > 20 > 2 > 95-99
Polish Journal of Sport and Tourism > 2015 > 21 > 2 > 119-126