@misc{Tomeczek_Artur_F._A,
 author={Tomeczek, Artur F.},
 howpublished={online},
 publisher={Publishing House of the University of Economics in Katowice},
 language={eng},
 title={A minimum spanning tree analysis of the Polish stock market},
 type={czasopismo},
 keywords={analiza sieciowa, COVID-19, giełda papierów wartościowych, Polska},
}