Paweł WRONA, Zenon RÓŻAŃSKI, Grzegorz PACH, Lech DOMAGAŁAThe application of a jet fan for the control of air and methane streams mixing at the excavations cross
Jarosław Brodny, Magdalena Tutak Determination of the zone endangered by methane explosion in goaf with caving of longwalls ventilated on „Y” system
