@misc{Graziano_G._Recognition,
 author={Graziano, G. and Orlando, M. and Podda, G.},
 howpublished={online},
 publisher={Wydawnictwo Politechniki Śląskiej},
 language={eng},
 title={Recognition of concave shapes with internal holes},
 type={artykuł},
 keywords={Politechnika Śląska, mechanika},
}