@ARTICLE{Dziurzyński_Wacław_Virtual_2007, author={Dziurzyński, Wacław}, number={Nr 2 (14) 2007 Danger}, journal={ACADEMIA. The magazine of the Polish Academy of Sciences}, pages={22-25}, howpublished={online}, year={2007}, publisher={Polish Academy of Sciences}, language={eng}, abstract={Underground methane can be highly lethal, appearing suddenly and mixing with air to form a strongly explosive gas. Dealing with methane quickly and safely requires an efficient system of ventilation and monitoring, ready for any scenario.}, type={Article}, title={Virtual Mine}, URL={http://journals.pan.pl/Content/128789/PDF/9_ACADEMIA_2_14_2007_Dziurzynski_Virtual.pdf}, }