@misc{Čillík_Ivan_The_2023,
 author={Čillík, Ivan and Sýkora, Jozef and Pivovarniček, Pavol},
 type={artykuł},
 publisher={Projack},
 title={The Comparison of Unilateral and Bilateral Training Effect to Changes in Speed and Speed-Strength Abilities in Preadolescence Athletes},
 address={Częstochowa},
 year={2023},
 language={eng},
}