@ARTICLE{Probierz_Krystian_The_2015,
 author={Probierz, Krystian and Marcisz, Marek},
 number={No 2},
 journal={Archives of Mining Sciences},
 howpublished={online},
 year={2015},
 publisher={Committee of Mining PAS},
 title={The Effect Of The Petrographic Composition On The Variation Of CRI And CSR Indices In The Pniówek Deposit In The Sw Part Of The Upper Silesian Coal Basin (Poland)},
 URL={http://journals.pan.pl/Content/93910/PDF/10267-Volume60_Issue2-13_paper.pdf},
 doi={10.1515/amsc-2015-0041},
}