@Article{ authors = " Andrzej Kochanowicz, Kazimierz Kochanowicz, Sławomir Różański, Dominika Wilczyńska", title = "The morphological characteristics and technical preparation of 9-12 years old gymnasts", journal = "Journal of Education, Health and Sport", issue = "2013 / Tom 3 / Numer 13", pages = "163 - 177" }