@ARTICLE{Wrona_R._The_2013, author={Wrona, R. and Ziółkowski, E. and Brzeziński, M. and K. Smyksy}, number={No 4}, journal={Archives of Foundry Engineering}, howpublished={online}, year={2013}, publisher={The Katowice Branch of the Polish Academy of Sciences}, title={The Quality of Compressed Air as the Necessary Condition the Improving the Process Efficiency in Foundry Plants}, URL={http://www.journals.pan.pl/Content/87699/PDF/20_paper.pdf}, doi={10.2478/afe-2013-0092}, }