@misc{Mroczek_Dariusz_Changes,
 author={Mroczek, Dariusz},
 copyright={Akademia Wychowania Fizycznego w Poznaniu},
 howpublished={online},
 publisher={Akademia Wychowania Fizycznego w Poznaniu},
 language={eng},
 type={artykuł},
 title={Changes in psychomotor reactions and the activity of certain physiological indices of volleyball players},
 keywords={volleyball, psychomotor reaction speed, move-making speed, heart rate},
}