@ARTICLE{Saramak_D._Optimal_2011,
 author={Saramak, D.},
 number={No 3 September},
 journal={Archives of Metallurgy and Materials},
 howpublished={online},
 year={2011},
 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={Optimal Production of Electrolytic Copper Determined by the Concentration and Distribution of Copper Concentrates to Smelters on the Example of KGHM},
 URL={http://journals.pan.pl/Content/85741/PDF/10172%20Volume%2056%20Issue3-07%20paper.pdf},
 doi={10.2478/v10172-011-0067-z},
}