@misc{Kukla_Stanisław_Green’s,
 author={Kukla Stanisław},
 howpublished={online},
 publisher={Wydaw. Politechniki Częstochowskiej},
 language={eng},
 type={artykuł},
 title={Green’s functions to vibration problems of Bernoulli-Euler beams with variable cross-section by a differential equation problem},
 keywords={Funkcje Greena, Green's functions},
}