@misc{Lorens_Michał_Skalar,
 author={Lorens, Michał},
 howpublished={online},
 publisher={Wydawnictwo Politechniki Śląskiej},
 language={eng},
 title={Skalar differential concomitants of the third order of a metric tensor in the two-dimensional space and their applications},
 type={artykuł},
 keywords={Politechnika Śląska, fizyka, matematyka},
}