@ARTICLE{Sobota_Piotr_Comparison_2016,
 author={Sobota, Piotr},
 number={No 3},
 journal={Archives of Mining Sciences},
 howpublished={online},
 year={2016},
 publisher={Committee of Mining PAS},
 title={Comparison of Conventional Sprocket Drum and Sprocket Drum with Modified Design},
 URL={http://ochroma.man.poznan.pl/Content/105526/PDF/10267-Volume61_Issue3-05_paper.pdf},
 doi={10.1515/amsc-2016-0037},
}