@misc{Fenczyn_Jan_Attitude,
 author={Fenczyn, Jan and Szmigiel, Czesław},
 copyright={Akademia Wychowania Fizycznego w Poznaniu},
 howpublished={online},
 publisher={Akademia Wychowania Fizycznego w Poznaniu},
 language={eng},
 type={artykuł},
 title={Attitude towards physical activity among boys and girls with simple obesity},
 keywords={simple obesity, young people, physical activity, physical education, adolescent},
}