@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://journals.pan.pl/Content/105615/PDF/10267-Volume62_Issue4-01_paper.pdf}, doi={10.1515/amsc-2017-0048}, }