@ARTICLE{Kajetan_d’Obyrn_Assessment_2017, author={Kajetan d’Obyrn and Hydzik-Wiśniewska, Joanna}, number={No 1}, journal={Archives of Mining Sciences}, howpublished={online}, year={2017}, publisher={Committee of Mining PAS}, title={Assessment of Rock Mass Stability in the Historic Area of Levels IV-V of the “Wieliczka” Salt Mine}, URL={http://journals.pan.pl/Content/105557/PDF/10267-Volume62_Issue1-14_paper.pdf}, doi={10.1515/amsc-2017-0014}, }