@ARTICLE{Gontarz_A._Numerical_2017, author={Gontarz, A. and Winiarski, G.}, volume={vol. 62}, number={No 2}, journal={Archives of Metallurgy and Materials}, howpublished={online}, year={2017}, publisher={Institute of Metallurgy and Materials Science of Polish Academy of Sciences}, publisher={Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences}, title={Numerical and Experimental Study of Producing Two-Step Flanges by Extrusion with a Movable Sleeve}, URL={http://www.journals.pan.pl/Content/105047/PDF/10172-Volume62_Issue2-005_paper.pdf}, doi={10.1515/amm-2017-0071}, }