@ARTICLE{Wodarski_Krzysztof_The_2017,
 author={Wodarski, Krzysztof and Bijańska, Jolanta and Gumiński, Adam},
 number={No 4},
 journal={Archives of Mining Sciences},
 howpublished={online},
 year={2017},
 publisher={Committee of Mining PAS},
 title={The Method of Validity Evaluation of Hard Coal Excavation in Residual Seam Parts},
 URL={http://ochroma.man.poznan.pl/Content/105615/PDF/10267-Volume62_Issue4-01_paper.pdf},
 doi={10.1515/amsc-2017-0048},
}