@misc{Kotarska_Katarzyna_The,
 author={Kotarska, Katarzyna},
 howpublished={online},
 publisher={Wydział Kultury Fizycznej i Promocji Zdrowia Uniwersytetu Szczecińskiego},
 language={pol},
 language={eng},
 type={czasopismo},
 title={The level of physical Þ tness in children aged 4–6 years from Szczecin examined in one decade cycle},
 keywords={pre-school children, physical fitness},
}