@ARTICLE{Jonczy_Iwona_Coal_2017,
 author={Jonczy, Iwona and Gawor, Łukasz},
 number={No 2},
 journal={Archives of Mining Sciences},
 howpublished={online},
 year={2017},
 publisher={Committee of Mining PAS},
 title={Coal Mining and Post-Metallurgic Dumping Grounds and Their Connections with Exploitation of Raw Materials in the Region of Ruda Śląska},
 URL={http://journals.pan.pl/Content/105577/PDF/10267-Volume62_Issue2-06_paper.pdf},
 doi={10.1515/amsc-2017-0023},
}