@misc{Malina_Robert_M._Youth,
 author={Malina, Robert M.},
 copyright={Akademia Wychowania Fizycznego w Poznaniu},
 howpublished={online},
 publisher={Akademia Wychowania Fizycznego w Poznaniu},
 language={eng},
 type={artykuł},
 title={Youth physical activity: implications for adult physical activity and health},
}