@misc{Drenovac_Vojin_An,
 author={Drenovac, Vojin},
 howpublished={online},
 publisher={Wydawnictwo Politechniki Śląskiej},
 language={eng},
 title={An approach to study of impact in multibody systems},
 type={artykuł},
 keywords={Politechnika Śląska, mechanika},
}