@Article{494669,
     author = "Izabela Drobnik-Kozakiewicz, Stanisław Saczyn, Michał Sawczyn, Anna Szumilewicz, Aleksandra Zarębska, Joanna Zapolska",
     title = "Analysis of motor abilities' progress among people realising fitness activities on regular basis",
     year =  2011,
     volume =  ,
     number =  78,
     journal =  Ekonomiczne Problemy Usług,
     pages =  s. 535-545,
    }