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Polish Journal of Sport and Tourism > 2013 > 20 > 4 > 279-282
Polish Journal of Sport and Tourism > 2013 > 20 > 4 > 279-282
Human Movement > 2009 > 10 > 1 > 21-25
Human Movement > 2009 > 10 > 1 > 21-25
Polish Journal of Sport and Tourism > 2013 > 20 > 4 > 279-282
Polish Journal of Sport and Tourism > 2013 > 20 > 4 > 279-282
Human Movement > 2009 > 10 > 1 > 21-25
Human Movement > 2009 > 10 > 1 > 21-25