Jan (J) Butra

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Authors	Title	Year
Pytel, W; Butra, J	Mine workings design in regional pillar mining conditions — a case study from a Polish copper mine Deep Mining 2010: Proceedings of the Fifth International Seminar on Deep and High Stress Mining, Deep Mining 2010	2010
Butra, J; Pytel, W	Rockburst prevention in deep copper mines of Poland Deep Mining 2010: Proceedings of the Fifth International Seminar on Deep and High Stress Mining, Deep Mining 2010	2010