@misc{Rychlewska_Jowita_Buckling,
 author={Rychlewska Jowita},
 howpublished={online},
 publisher={Wydaw. Politechniki Częstochowskiej},
 language={eng},
 type={czasopismo},
 title={Buckling analysis of axially functionally graded beams},
 keywords={funcionally graded beams, bulking load},
}