@article{Różański_Zenon_The_2016,
 author={Różański, Zenon and Wrona, Paweł and Sułkowski, Józef and Pach, Grzegorz},
 number={No 3},
 howpublished={online},
 journal={Archives of Mining Sciences},
 year={2016},
 publisher={Committee of Mining PAS},
 title={The Problem of Carbon Dioxide Emissions from Closed Coal Mine Shafts – The Overview and the Case Study},
 doi={10.1515/amsc-2016-0042},
}