@misc{_Mining_2020,
 year={2020},
 rights={Pewne prawa zastrzeżone na rzecz Autorów i Wydawcy},
 description={Mining Science, Vol. 27, 2020, s.},
 publisher={Wroclaw University of Technology},
 language={eng},
 type={journal},
 title={Mining Science, Vol. 27, 2020},
 keywords={mining, geology, geo-engineering},
}