@ARTICLE{Filek_Krzysztof_The_2000, author={Filek, Krzysztof and Nowak, Bernard and Roszkowski, Janusz}, number={No 1}, journal={Archives of Mining Sciences}, pages={71-88}, howpublished={online}, year={2000}, publisher={Committee of Mining PAS}, type={Article}, title={The Best Selection of Duct Fan Co-Operating with a Surface Cooler of Air}, URL={http://ochroma.man.poznan.pl/Content/132276/PDF/6_MINING_45_1_2000_Filek_BEST.pdf}, }