@ARTICLE{Godyń_Katarzyna_Structurally_2016,
 author={Godyń, Katarzyna},
 number={No 3},
 journal={Archives of Mining Sciences},
 howpublished={online},
 year={2016},
 publisher={Committee of Mining PAS},
 title={Structurally Altered Hard Coal in the Areas of Tectonic Disturbances – An Initial Attempt at Classification},
 URL={http://ochroma.man.poznan.pl/Content/105535/PDF/10267-Volume61_Issue3-15_paper.pdf},
 doi={10.1515/amsc-2016-0047},
}