Polish Journal of Sport and Tourism
Polish Journal of Sport and Tourism > 2011 > 18 > 2 > 160-165
Polish Journal of Sport and Tourism > 2011 > 18 > 2 > 134-139
Polish Journal of Sport and Tourism > 2011 > 18 > 2 > 122-127
Polish Journal of Sport and Tourism > 2011 > 18 > 2 > 112-116
Polish Journal of Sport and Tourism > 2011 > 18 > 2 > 146-152
Polish Journal of Sport and Tourism > 2011 > 18 > 2 > 105-111