@misc{Zamorska_Izabela_Effect,
 author={Zamorska Izabela and Cekus, Dawid and Miara Mateusz},
 howpublished={online},
 publisher={Wydaw. Politechniki Częstochowskiej},
 language={eng},
 type={artykuł},
 title={Effect of crack parameters on free vibrations of the Bernoulli-Euler beam},
 keywords={Bernoulli-Euler beam, crack, free vubration, mathematical modelling, CATIA},
}